Logitech 931689-0403 MX Revolution Cordless Laser Mouse (Black) Reviews

• Full of Great Ideas. When Stuff is Cool, I get excited.

  
  By A14JBDSWKPKTZA on 2006-08-24
  Installation is a breeze. Plug in the charger. Turn on the mini switch on the back of the mouse. Pop the USB receiver into a USB port. (It is so tiny; it is the size of 2 USB plugs altogether.) then use the auto install on the CD. Then shut down, remove your old mouse, and reboot. Done. By the way, the lithium battery had a sufficient charge right out of the box. You're up and running in a couple of minutes.
  
  You don't need a mouse pad. Right away I put it to the test. You know the frustration you feel when a mouse doesn't work, restricting you to the mouse pad. Not this one. I tried it on a gloss lacquer finish maple desktop table, it worked great. Then I said, "Aha, I will put it on the perfectly clear, see through plastic, it came in", and it read perfectly again. You could do microsurgery with this thing, using it on clear plastic, your pants, your legs, or whatever. No movement is too fine, no matter what surface you use it on.
  
  The scroll wheel has a special feature, it tilts right and left. That is a whole new set of choices. You can custom set the features yourself in the Set Point software. You can set up this whole mouse to your specifications, and it is an intuitive menu for doing so. For scrolling at hyper speed, I set "Cruise down" and "Cruise up" at 40%. With a gentle tilt, you are rapidly moving up and down the page, able to stop anywhere. At 100% the page is flying by you. I love hyper speed at 40%. The bottom line is their is no having to scroll the wheel like crazy to get down to the bottom of a long page. It even has an autosensing feature that automatically adjusts the speed to the size of the page. In addition to the tilt is the standard scroll wheel function, but now with 2 speeds, normal and extra fine, by simply pressing down on the wheel, to toggle between the two.
  
  You have presentation flexibility because the mini USB receiver is good up to 12 feet away, even though it had to go through my couch to get to me.
  
  This thing rocks. It's got a topside mini search button that you set up with your favorite search engine. All you do is highlight a word, or phrase, hit the search button and you're there. (HUGE time savings.) Great for learning software; you've got the book, you've got the help file, but you need more. Highlight the topic, one button, and instantly their is a page full of help called Google. (for example)
  
  The document scroll feature is cool enough to deserve its own scroll wheel on the side, which it has. If you're working between two or more programs, or documents, a quick push on the scroll wheel, up comes a box with all the running applications/docs right under your mouse cursor. Then, the tiniest movement brings up your program. Way faster than using the task bar.
  
  The design is something right out of Star Trek. Finally, someone built a mouse with tons of features and the buttons don't get in the way. The top of the mouse doesn't have a left and right click panel, instead the complete top flexes on each side of a slit, in the front middle. So it is an arch that is flexing. It has a Frank Lloyd Wright feeling to it. It works perfectly, very sensitive. I guess you can tell, I love this mouse.
  
  I have been using Logitech keyboards and mice on my machines for quite some time. This thing is a technological breakthrough in sensitivity, intelligent design right down to how they wrap the CD, and I have to admit, beauty. You should see it. Whether it is sitting on the charger, or on your desktop, it's beautiful.
  I'd like to say it is a toy, but it is a very serious business tool that makes your work more efficient, and exact. This is the way mice should have been made all along. The only thing wrong with it is you won't be happy with your old mouse anymore. I should get one for every machine. Highly recommended.
  
  PS: This thing is intelligently wrapped. You can be sure that in a UPS (Unbelievably Pulverized Shipment) :-) it won't be flopping around in the box. To remove it once it arrives, do as the instructions tell you, and press on the mouse "On the logo" and it pops right out. The mini receiver pops out just as well.
  
  
  
  

• Nice features but severely lacks in quality!

  
  By A2M6OZ8KDJGIJK on 2007-07-29
  I have used several different Logitech miceover the years, and specifically the MX Revolution Cordless Laser mouse for the past 10 months. Actually I've had two separate MX Revolution mice during the past 10 months since the first one lasted a few months before behaving erratically. It took another few months, a lot of aggrevation and many phone calls and emails to Logitech Customer (non) Support before I could get a replacement.
  
  This second MX Revolution, a few months old, is now starting to behave in the same way, it hesitates frequently when trying to move the cursor, and clicks to the index finger button do not always register. Sometimes it clicks, sometimes it doesn't, and there seems to be no rhyme or reason to it's behavior.
  
  The first MX Revolution, in addition to the above mentioned behavior, also would frequently register multiple clicks when only pressed once. This created many problems with deleting emails, making online purchases (where more than one item was purchased unintentionally), and even playing simple computer games was nearly impossible.
  
  This mouse is supposed to be guaranteed for 3 years, which is about 2 years and 9 months longer than it lasts. Dealing with Logitech through email or phone is an exasperating, aggrevating, and blood-pressure raising lengthy nightmare. I'm not even going to bother contacting them about this new mouse, I'll just purchase something else and be done with them.
  
  This is not an inexpensive mouse, and Amazon generally has the best price, but for the money spent, this mouse is a poor choice. Sure it feels comfortable to the hand and has some great features, but what good is all that if it doesn't have the quality to back it up?
  
  I'm now shopping for a new mouse and have decided to stay away from Logitech. I'll miss some of the special features the MX Revolution offers, such as the fast scrolling, the back and forward thumb buttons, etc, but having to replace my mouse every few months is absurd. For the price, I want some quality, dependability, and reliability, but that's not what I've experienced now with two of these mice.
  
  Save yourself some aggravation, pick something different, something other than Logitech's MX Revolution Cordless Laser Mouse.
  
  
  
  
  

• Nice Mouse for Mac Users Too

  
  By A1RAUVCWYHTQI4 on 2006-08-31
  Opening the Box
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  One of the hardest products to actually get out of its packaging I've come across. The package designers have obviously studied Apple's sleek look, but even getting the install disk unstuck from the underside of the interior box took more effort than it should!
  
  Installing the Software (MAC users pay attention!)
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  The install disk is Windows only, so I had to hunt through the documentation for how one obtains the Mac version of Logitech's "SetPoint" software. It's on the upper left of page 3 in 4 point type, so if you don't have eagle-eye vision, you may need to get someone to read the URL to you. Unfortunately, that URL isn't going to help you, 'cause it doesn't work. Instead, you have to go to Logitech's web site, click the "downloads" menu and navigate through a series of screens to get to the right place to download the OSX version. Installation takes a minute or so and does require restart.
  
  Setting up the Mouse
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  The wireless receiver plugs into any USB port and is nice and small. It's also black, which means that it's easily lost... While I was installing the software I inadvertently knocked it to the floor with a cord (I know, ironic) and it took me half an hour to find it because it was nicely concealed in some shadows. The mouse does come with its own charger, which is a two-edged sword. One the one hand, it's nice not to have to keep a supply of batteries on hand and always run out at the most inconvenient time. On the other hand, it's another thing to have plugged in somewhere, and if you're desk is as cluttered as mine, that's a hassle (and yes, I've knocked it the floor once already too). In terms of battery life, it seems pretty good. I've used the mouse for the last three days and left it on overnight without any decrease in the number of bars on the indicator.
  
  Using the Mouse
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  Once the mouse was all charged up, I just started playing with it as is right out of the box. I immediately noticed some strange performance from the main scrollwheel, which allows you scroll vertically through documents. I had to go into the preferences right away to tweak the settings to speed it up. Actually, this was good, because it showed me just how customizable most of the buttons and settings are. For example, it didn't occur to me that I could set up different behaviors for different programs. This takes a good deal of experimentation and trial and error, but is well worth it for the heavy user. I'm a graphic designer and use Creative Suite (InDesign, Photoshop, Illustrator), as well as Dreamweaver, Fireworks, Word, Excel, Safari, Acrobat, etc. and I think that once the learning curve is over, the mouse will help me do stuff faster.
  
  Some Features
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  A lot of people seem hyped on the main scrollwheerl/flyweel. It's nice and smooth and all, but it's not going to change your life. You can also tilt it side to side to scroll horizontally in a wide document, but I find that I often accidentally scroll up and down when I do this as well. Just above it is a small button which, when pressed with a word or phrase highlighted, will initiate a seach based on that term. You can set it to use the Spotlight, Finder, Google, Yahoo, Sherlock, or any search engine you specify. That's pretty cool and is a feature I will definitely use a lot. There are also two buttons just above the thumb groove which I've used mainly to flip back and forward between web pages, but haven't set to do much else yet. The one feature I'm not a fan of is the scroll wheel in the thumb groove. It allows one to toggle between open applications. While this should be great, since I often have at least five applications running at once, I find that it's far to easy to accidentally activate and may end up disabling it (which is something you can do for all the features).
  
  Ergonomics
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  This thing feels great. It fits the hand nicely and has a perfectly sized thumb groove and is weighted just right (I find most mouses to be too light). Eveyone in my office who checked it out really liked it too except for one woman with smallish hands who found it a bit cumbersome and the left-handed people who felt, well.... left out. So while it's perfect for an average size person like me, I can imagine that people with especially large or small hands won't be able to use all the features as easily.
  
  Overall?
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  Having spent the last several days playing with this new mouse on my G5 workstation at the office and my G4 laptop at home I'd give it an overall thumbs up. It's annoying to have to hunt for the Mac install software, but once over that, it's almost all good. It's definitely a mouse for the heavy user, someone like my mom, who's not the most proficient computer user to start with would find herself constantly accidentally hitting features and getting confused. It's pricey, but if you can get your company to pay for it, why not?
  
  

• A computer performance booster dressed in mouse outfit

  
  By A1IANEBSMVGHS9 on 2006-08-28
  I never imagined I could get excited about a mouse. Actually, I haven't felt this excited about a mouse since I got my first optical mouse (not having to periodically clean that mouse ball meant a lot!) The truth is that from the moment I took the MX Revolution out of the box I knew I had something way more special than a conventional mouse in my hands. Now, after a few days of continuous use, I know that feeling was true. So, what makes it so special?
  
  A cordless mouse may not sound as much, but if you consider that this mouse is rechargeable too, that may score a few more points with you, since you have to just leave it charging overnight as you see a need for it and there's no more need to worry about batteries! (plus less waste too).
  
  If cordless and rechargeable are not features that rank high with you, how about ergonomy? The MX Revolution fits your hand like a glove. It has a side wheel perfectly positioned to help you navigate through applications (substituting the need for the Alt-Tab hotkey) right by your right thumb. Also nearby you find two convenient slim buttons allowing you to navigate back and forth through your browser's history. Not too far, you have a nice "search" button you can program (like all buttons and wheels in the mouse) to speed up your web searches through Yahoo! or Google.
  
  Not satisfied yet? Here's the big one! Scrolling like you've NEVER seen before. As fast as you've dreamed of being able to scroll up and down lengthy documents. Just click on the scroll wheel on top of the mouse and the typical step-by-step movement of the wheel makes room for what feels like a wheel with NO friction. Slide the wheel fast enough and you get to the bottom of your documents in a split second (I mean it!)
  
  So, am I excited about this mouse? You bet! The $100 price tag is more than justified: this is no average mouse -it's a computer performance booster dressed in mouse outfit!
  
  

• I Love My New Mouse!

  
  By A2AOZQ3WTNVVOK on 2006-08-25
  I have been around computer technology for nearly 30 years. I find it increasingly difficult to get excited regarding new technology. When I got this mouse I was thinking, "Ho hum. Another new mouse. Big deal." I was so wrong. This mouse is FUN.
  
  I had the mouse installed in a few minutes. I had enough charge, so I went on with plugging in the USB receiver and popping in the CD. Installation was a few clicks and a couple of dozen megabytes away. I already had an optical mouse that worked great on a light oak desk top, so that was my standard. This mouse worked just as readily. However, my previous mouse had a nasty cord. The new mouse responds quickly and effectively over the 2.4 GHz transmitter.
  
  The first thing I noticed after starting to use the mouse is that the mouse scrolled really fast with the scroll wheel. Let me make sure you understand what I mean. When I scrolled the wheel, each file I was in blurrrrrrred past. Wow. Cool. If you like a more precise feel you can press on the scroll wheel once to get clicks and slower scroll. Click again and a spin of the wheel blurs you through a document. This same feature works on the internet. I kept scrolling and clicking, a big smile on my face. This mouse is one cool mouse. I think I'm in love with the mouse. But wait, there's more! The scroll wheel automatically adjusts to the size of the document so that you get click scrolling or fast scrolling. This mouse is awesome!
  
  This mouse has many more buttons. There's a "touch to search" button just behind the scroll wheel. Highlight a word or phrase, click the button, and you are off to your favorite search engine to search for the word or phrase. This feature alone is a great time saver and fun to boot.
  
  There is a wheel on the left side of the mouse. That button was initially set up to switch between documents. I reprogrammed the button using the included Logitech Setpoint (TM) software so that the left wheel modified the zoom in a document. I tend to zoom in and out more than I change documents, so the reprogramming was useful to me; people that use drawing or CAD software will love this feature.
  
  Two more buttons on the left edge of the mouse are initially programmed to move forward and backward. On the internet these buttons move you to previous internet pages.
  
  As cool as this mouse is as received, the range of features permissible with re-programming of the mouse is outstanding and makes this mouse even better. With the exception of the left and right click buttons, a user can program each button with a variety of options. While programmable mice have previously existed, with seven controls and a range of choices for five of those controls, the range of programming for this mouse is phenomenal. Even better, a user can program the buttons for operability with all software or for certain programs.
  
  This mouse also has visual indicators that let you know when you have to recharge the batteries. The indicators are a mild green when the mouse charge is acceptable. The indicators go out after a short period to save battery charge. I thought the indicators were subtle reminders of the charge level. When the charge level becomes too low, a red indicator lights; it is time to recharge dude!
  
  This mouse also looks cool. The black and dark gray colors go well with my Dell computer. The mouse is shaped to fit my hand and my thumb, which makes the mouse very comfortable. The mouse slides easily and smoothly on my desk, giving me excellent control over the position of the pointer.
  
  I do have a teeny word of criticism. The box the mouse arrived in was a pain to open. Worse, the plastic packaging for the mouse and the receiver secured the mouse and receiver too well. I got the mouse out somewhat easily by following the instructions to grip the plastic and pushing on the mouse. The mouse came out, but it was awkward and felt weird. The receiver was harder to remove. I tried to get the receiver out per the instructions and ended up bending a thumbnail and being personally annoyed after removing the receiver. Okay, maybe I am unable to follow "simple" instructions. Anyway, a little difficulty in taking the mouse and receiver out of the box was a small price to pay for getting my hands on the best mouse I have ever owned. Perhaps Logitech will take a hint with the packing and make the mouse a bit easier to get out in the future.
  
  Just when I thought technology had become boring, Logitech comes out with the MX Revolution. This mouse has more features than I knew could be packed into a mouse, the best scroll wheel ever, and a shape that looks as though the mouse belongs in a science fiction show. Well, I have a scroll wheel to play with, so I'm out of here. I recommend you get your own. Trust me, you will love this mouse. Enjoy!
  
  This review is based on a mouse provided to me by Amazon.
  
  
  
• You say you want a Revolution? Well, you can have mine.
  By A10UJZ7CXSKF78 on 2006-12-10
  This mouse is pretty darn cool in concept. So cool, in fact, that I could almost convince myself that I liked it. I mean, how could I not like such a cool looking mouse? AND it's called "Revolution," yeah! Unfortunately, I was sorely disappointed by this Revolution, and I switched back to the old regime (the MX 1000).
  
  I am a stickler for ergonomics. I want a mouse to feel comfortable in my hand. My fingers should slide easily over the surface, the buttons should be comfy and smoothly contoured, and I should naturally find the buttons and wheels in a convenient location. The shape of this mouse IS nice and comfy, and the thumb rest is nice, (though the MX 1000 thumb rest is smaller, it's more than adequate) but I find the buttons and scroll wheels to be awkward, and in the case of the forward/back buttons, actually uncomfortable to press.
  
  Starting with the aforementioned forward/back buttons, they are placed a bit too high from the sculpted thumb rest, so that I have to move my thumb more than I think is efficient or comfortable. You also kind of have to do this "out and up" motion to get to the buttons, due to the deeply sculpted thumb rest. Second, the buttons themselves are, unlike the rest of the mouse, completely UN-contoured. I thought it strange actually, that the buttons seemed to not fit the rest of this very ergo-looking mouse. They actually have uncomfortable corners and edges that make their use somewhat unpleasant.
  
  The left scroll button that defaults to a document switch button works as intended, feels fine, etc. however, it is placed a little too far down on the thumb rest, and often gets in the way. In particular, if I'm gaming, I will often squeeze the mouse excitedly, and accidentally click the button. Usually this leads to death (game death of course), as the little program switch window comes up and I must click frantically to close it. Funny in retrospect, but actually quite irritating.
  
  The main left and right buttons are unexceptional (which is fine), but it's the scroll wheel and "search" button that really irritate me. The scroll wheel has two modes, both of which are bothersome. The smooth speed scrolling mode is somewhat difficult to control, even after tweaking the settings extensively. The "regular" mode is very "clicky," meaning that you feel a very pronounced click-click-click when you scroll. It was also quite loud so that my boyfriend who has his computer about 10 feet away found the sound distracting. Also somewhat funny in retrospect, but quite annoying in reality.
  
  I'm not certain if I'm in the majority here, but I also use my scroll wheel as a middle click - and quite extensively. The problem with this mouse is, that while it can be reconfigured as a middle click (after extensive searching and troubleshooting - it was NOT obvious how to do this), it is most uncomfortable when used in this way. The wheel is quite stiff to press and is made this way intentionally because it is intended to be used to shift between the two scroll modes, something you probably don't want to do accidentally while scrolling. It actually makes this clunking noise when you press it, like you're dropping your car into first gear, but it's a MOUSE.
  
  Since the scroll wheel was completely unusable as a middle click, I decided to reconfigure the "search" button to serve this purpose. While I must admit this is much better than the middle-clunk offered by the scroll wheel, it is set just too far forward on the mouse to enable comfortable middle-clicking.
  
  All in all, if you're a mouse connoisseur, go with the Logitech MX 1000. Granted, it doesn't look as cool as the Revolution, and the name isn't as catchy, but it's much simpler design can be configured to do almost everything that the Revolution does, except for the "speed scroll," something which I can clearly live without.
  
  
  
• No sleep mode makes this mouse flawed
  By A1F9Z42CFF9IAY on 2007-06-12
  This mouse is flawed because it doesn't go to sleep after a period of inactivity like my optical cordless mouse does. This means that if you forget to turn it off on the bottom of the mouse (a hassle) or don't return it to the recharge base before retiring for the night-in the morning the mouse will be nearly dead and will require a recharge before you can use your computer. A word to the wise.
  
  If it went to sleep automatically, you would not have this problem. Since I wanted a laser mouse for more precise movement over an optical one, I'm keeping my MX400 cordless optical mouse for now as it does go to sleep automatically.
  
  
  
  
• Be aware of battery issues
  By A2VZ53J7XL0UW0 on 2007-09-26
  I've never written a review here at Amazon, but I felt compelled to let other potential buyers know what they *might* experience if they buy this mouse.
  
  Before buying, please be aware of the (reasonably common) issues with the built-in rechargeable batteries in this mouse. Go to the Logitech forums (forums dot logitech dot com) and read what issues people have been having with the batteries (inability to recharge, frequent loss of mouse precision due to battery issues, etc).
  
  Don't get me wrong: this is a lovely mouse, truly well designed and a joy to use when it's working. Unfortunately, there's an apparent flaw in the battery charging system that makes some mice unusable.
  
  Until Logitech either issues a recall or openly admits that there's a quality control issue with the MX Revolution, I'd suggest anyone seriously reconsider purchasing this mouse.
  
  
• An incredible work of design and engineering...
  By A3R19YKNL641X3 on 2006-08-26
  Imagine my pleasure (being the techno-geek that I am) when I received this in the mail from Amazon and Logitech for review... The Logitech MX Revolution Cordless Laser Mouse. I'm wondering if I can somehow sneak this into work... Very nice!
  
  
  
  I shifted to an optical mouse some time back, thinking I'd have less skipping issues with the ball getting gunked up. But the keyhole design of the optical area still collected fuzz and caused skipping. With the MX, no skipping whatsoever. And with no cord (a new thing for me), I don't have to worry about scattering paper and stuff over my desk as I drag the mouse around. Those two things right there would be enough to make me pretty happy. But wait! There's more...
  
  The feel of the MX is the best I've experienced in my far too many years of working with PCs. The weight is just about right... not too light or too heavy. And the thumb groove for right-handed mousers is perfect for how my hand normally rests on a mouse when I work with it. Any minor issues with hand cramps after long hours online are gone. Again... if I stopped there, I'd be extremely pleased. But it *still* continues to get better...
  
  The button and wheel features of this mouse put it over the top. The side wheel is a document switcher. You roll it back, and you get a display of all open windows. You can then select the window and click on it to quickly jump around. It'll take me awhile to get used to, but I can see it becoming a habit after that. The scrolling wheel at the top has a smooth glide mode as well as the clicking mode. You can switch between the two just by pushing down on the wheel. You can also tilt the wheel from side to side to get horizontal scrolling. I didn't realize that until I went into the software configuration screen. I don't know how much I'll use that feature, but it's a great idea. The two little buttons above the side wheel are forward/backward buttons, much like the buttons on your browser. Again, ingrained habit will still lead me to my browser icons, but I'm going to work on breaking that one. And finally, the button below the top wheel is set up to allow you to highlight a word or phrase on the screen, then you can click the button to do a search against that term. If you do a lot of browser work, this mouse can become a major navigation tool all by itself.
  
  The only thing I disliked about the mouse was the packaging. There are actual instructions on how to pop the mouse out of the plastic casing it's shipped in. Even with the instructions (how hard can it be???), it took me nearly a minute to remove it from the case. I didn't want to break the mouse, and it seemed like I was applying too much pressure for something as basic as removing an object from plastic. I nearly grabbed the scissors to do something that should have been intuitive. But having griped about that, there's no way I'd give the mouse back... :)
  
  A computer mouse is one of those things that is easy to take for granted. But when you have the opportunity to use something that's as finely designed and engineered as this, you realize what you've been missing. I would award this device the highest rating that a reviewer colleague of mine can bestow on something sent to him... the "Reviewer Refuses To Return The Device" rating. :)
  
  
• Tries To Do Everything
  By A3GKPMHV4U64IY on 2006-08-30
  I am a computer professional and have been in the field for just short of 30 years. I have worked with all levels of systems from mainframes, time share option, micros, minis, and just about every peripheral around. My work has kept me on the bleeding edge of more technology than most people ever work with. I have worked with all manner of keyboards, mice (1, 2, 3 buttons and combos), trackballs, pointers, pads and other input devices. In the end I just like to leave my hands where they are. If they are on the keyboard, I want to stay on the keyboard. If they are on a mouse, I want them to stay on the mouse. The Logitech MX Revolution mouse feels like it was the brainchild of someone like me.
  
  Before ever operating the mouse I read the enclosed copy. I had to find out what was supposed to be so special. The copy is mostly concerned with the mouse's scrolling capability. The copy claims it takes 7 minutes for an ordinary mouse to scroll through 10,000 lines of a spreadsheet. I tried it with several regular mice and I was always under half a minute. The copy says a single spin will scroll through all those lines but I have been unable to get that sort of performance. The scroll wheel located between the main buttons is really a flywheel. Give it a flick and it will keep spinning. Clicking the wheel will toggle between a smooth scroll and a ratchetting scroll but both are capable of speed.
  
  But scrolling in not all this mouse does. Lets look at some of the other features.
  
  Side scrolling. The scroll wheel can be pushed side to side to allow sideways scrollings. Now this is a feature I find usefull with a big spreadsheet.
  
  It is ergometric. That means it is shaped to fit a right hand. Left-handers are out of luck. Sure, you can reprogram the buttons but you still have to use your right hand. I have not seen evidence of a left-hand version despite the growing percentage of left-handed people.
  
  I wear a size large glove but some of the features of the mouse are just slightly out of comfortable reach. This could be a problem for some people.
  
  Wireless. This means there is a charging cradle for the mouse. I have not used it long enough to test overall battery life through repeated charging but the unit has power saving capabilities. The mouse will power down after a short period without use. A single charge will last a long time (I currently have 6 days left on my charge) so you won't find yourself having to recharge all of the time.
  
  Power. The battery should last a long time between charges but I am curious about the design of the charger. It has a two-prong plug. This is somewhat unusual but the real oddity is the plug looks like something decades old. Both prongs are the same width. I can not remember the last time I encountered such a thing on new technology.
  
  Laser. No easy to clean track ball on the bottom, just a laser. Preference is a personal thing but the whole industry is moving away from those little rollerballs.
  
  Forward and Back. These are two buttons on the edge of the mouse. They can activate some features in certain Microsoft software. On e such feature is that in Windows Explorer you can jump back and forth between folders you have been in.
  
  Document Flip. This is a wheel-like button on the side. It acts like Alt-Tab so that you can switch between open applications. Unlike Alt-Tab there is no wrap feature to the list. Top is top, bottom is bottom and they are always at opposite ends.
  
  Programmability. You can program all of the controls to act differently in different programs. This can take a while but can be very useful if you use a lot of different types of programs like CAD as well as standard office suite programs. Most users will probably stick with the defaults for the majority of their software and only reprogram for a select few.
  
  Search. Yes, this mouse has a search button. Highlight a word or phrase, hit the button and your favorite search utility will go looking. This will be useful to some but my searches are usually not for something I can already select.
  
  Well, there you have it. Lots of features some of which you will find useful and some you won't. But you don't have to use all of the features. Provided the device fits your hand, its programmability and flexibility will allow it to meet your own needs and preferences. Persnoally, while I like some of the features, the not-quite fit and the fact some of my household can't use it result in a low rating.
  
  
• Nice mouse but don't lose your USB receiver!
  By A3IQDH1H4WOUXF on 2007-01-26
  I won't repeat all the glowing praise for the mouse. It really does a nice job but BE WARNED! - if you lose your tiny little USB receiver - you have to buy a new mouse. Logitech does not sell the USB receivers as replacement parts. They did offer to sell a refurbished mouse and receiver for 1/2 price with no warranty. Hang on to the USB Receiver or buy a cheaper mouse!
  
  
• Unless your computer is right next to it, forget it.
  By A14EZA4FI05UFW on 2007-01-29
  I have my tower on the floor to my left. I mouse right-handed. The mouse signal has to cross only a monitor and a couple of small speakers to reach the teeny tiny USB key that is the receiver. This receiver must be plugged into a motherboard-based port, and I couldn't put it on a USB extention cable, or a hub. The mouse would hang, jump, and jitter across the screen.
  
  The "solution" offered by tech support? Uninstall SetPoint 3.01. I returned the mouse and went back to my MX1000.
  
  Unless you're using it with your computer right on the desk, or on a laptop, it's not worth your time.
  
  
• Truly a "Revolution"
  By A19DW56JKV005H on 2006-08-28
  Great mouse with a revolutionary design. Whether you are a spread sheet guru or a CAD user, this mouse can cut many minutes off regular mundane key strokes and wheel spins. Never seen anything so configurable, and in a very useful way. At first, in AutoCAD 2006, it looked like the inability to use the wheel button to pan in realtime would make this mouse a deal breaker for me.
  
  After playing around with the Setpoint software I was able to turn off the Smartshift wheel in the AutoCAD application allowing me to confugure the button correctly and using it with different applications in different modes. I've only had the mouse for a couple of days and it has already been very useful. Another thing worth mentioning is the small mouse receiver can be plugged in to the back of your computer in any USB port without any type of desktop receiver. You can walk accross the room and point it in the opposite direction and it still works flawlessly and precise.
  
  This mouse isn't meant for everyone, but if you are a heavy computer user, particlarly with spreadsheets, Internet, graphics applications, or a multi-tasker (all describe my use habits) it is a must have, IMO. I would imagine this mouse will be the "gold standard" for many years to come. WHAT will be next?!? Possibly speaking or just thinking commands, I guess...
  
  One other thing... as of 8-25-06 the mouse only ships with an installation CD for Windows XP, Vista, and Mac® OSX 10.2.8+. Windows 2000 users can download directly from the Logitech site.
  
  
  
  
• P.O.S.
  By A10YXR1RGPA52U on 2007-02-07
  Mouse behavior is erratic, flakey, and sometime non-existent. I came from an MX1000, and the cursor was always spot on, never 'twitched', and was very precise. The Revolution is worse (by far) than a $20 optical mouse. I've tried Logitech's troubleshooting, eliminated every wireless device that could interfere, and finally bought a corded mouse.
  
  As far as the other guy who was on a mac and commenting about the 'control panel', I agree 100%. Their software is garbage. USB Overdrive is a solution, but a $20 solution tacked on to a $100 mouse. I realize that a lot of his issues with button mapping are software related, and I have those as well, but would like to add that the tracking (or lack thereof) is hardware related as there are a lot of people on the logitech boards on Windows boxes who are having identical issues to mine.
  
  I see a lot of positive reviews, and I'm happy for the people with good luck, but if you wander to the logitech forums, you'll see my experience is just as common. Beware of this mouse. If you can find an MX1000, you'll be much happier. BTW, my scroll wheel toggle from free-spin to ratchet broke in about 2 weeks.
  
  
• Impressive engineering but a few things bother
  By A2QHM5HBSIXRL4 on 2006-08-29
  Things I like about this "revolutionary" (their word) product:
  
  1. The dual-scroll mode feature (hyper-fast vs. precision ratcheting). That's truly a worthwhile innovation and one with immediate usability. I found myself going hyper-fast in documents almost immediately. Very, very nice. Kudos on that one.
  
  2. The small form factor of the wireless receiver. It's the first one I've been able to install on the front-side of my desktop. I can easily close the clamshell on top of it to conceal it. It's barely 60% the size of my other wireless receivers.
  
  3. The precision of the laser mouse (not that the MX Revolution invented the thing, but my prior mouse was an optical so this feels like a great leap forward).
  
  4. I also appreciate that the SetPoint software that I downloaded onto XP maintains compatibility with my existing mouse.
  
  Things I'm not too keen on:
  
  1. I realize I should be 'happy' about the rechargeable lithium-ion battery. In truth, I was upset to see I had yet another piece to manage. Call me a luddite here, but I prefer simply to put in new batteries when the current ones lose their juice. I bought my previous mouse (LogicTech Cordless Optical) specifically because it had two, and only two, parts: the mouse and the receiver. The MX's approach is a step backwards in my book. I don't want one more cord and plug to manage, thank you. If anything tempts me not to use the mouse going forward, it's that.
  
  And maybe I'll appreciate this approach in the long run, but my visceral and immediate reaction was an audible groan when I opened the back of the packaging to see the recharger hidden away back there.
  
  2. For those of you who like a simple, stripped down mouse, the MX is not for you. My wife is in this camp: she expressed immediate disatistaction with the product after her test-drive. Too many buttons which seem to get engaged too easily (she completely dismissed the 'Document Flip' function and the whole concept of the side button after two inadvertant engagements of it).
  
  3. I really thought from the sound of the marketing pitch I got from Amazon and Logitech that I was getting some totally new concept headed my way, perhaps the invention of a new product category. With all due respect to the intricate and impressive engineering that went into this release...it's a mouse.
  
  
• Not worth the money
  By A12GCD1ID77HH2 on 2007-02-21
  First the good.
  I love all the buttons this thing has. I bought this for gaming and word processing and it worked pretty well. You can customize what it does for individual programs. The only problem I had with the customization is that sometimes it wouldn't keep the correct bindings you assigned to the buttons. It's very frustrating to be in the middle of the game and all of the sudden your reload button keeps kicking you out of the game and opening up a search tab in windows. Rebooting fixes it though.
  
  And then...
  I bought this mouse thinking that maybe if i spent a little more I'd get what I paid for. I fell for the whole "Performance Laser" thinking it must be precise and wouldn't have the control issues I've had with previous cordless mice. There is nothing precise about it. Trying to use photo shop is a nightmare. If i have the mouse further than 3 feet away from the usb plug it gets choppy, or feels like a mouse with a sticky trackball.
  
  For the past 2 days I've had the mouse within about a foot of the usb plug and it seems to help (but why have a wireless?) , but it's still frustrating. It seems to lag and I can't be very precise with it. One of the most annoying feelings in the world is having a mouse that doesnt work the way you want it to. trying to click on something small can be painful.
  
  In my opinion this mouse isn't worth it's price. This is the third product I've bought from logitech that I've been disappointed with. I'm very very frustrated at the moment and I'm trying to get it exchanged. Very angry.
  
  For the price I payed I expected more.
  
  
• Determining if your mouse is defective
  By A2U4Y7GUDIIDS6 on 2006-09-08
  I agree with all the good things reviewers have to say about this mouse. But like all complex devices, sometimes they are defective. When I first received this mouse it didn't work. It took me a day to convince myself the problem was a bad mouse and not some installation error on my part. If you buy this mouse and none of the buttons work and if the SetPoint battery level indicator says "Unknown Battery", you have a defective mouse. Return it for another one. I returned mine through Amazon's return procedure and got another one in 3 days. The new one worked instantly. If you have never used Amazon's return procedure before let me tell you it is easy. With a few clicks it allows you to print return instructions, a prepaid return shipping label and reorders you a new item with 2 day shipping.
  
  
  
• Works poorly on some surfaces - including Belkin mouse pad
  By A3RU5E41NGWF0H on 2007-02-17
  The laser seems to track very erratically on the Belkin F8E262-BLK WaveRest Gel Mouse Pad. It is so bad that the cursor jumps around making it difficult to even play solitaire smoothly. Regular Logitech LED mice have no such problem. I can use the laser mouse on a wood desktop without any problems. But it seems that the laser is TOO sensitive for the cloth surface of the mouse pad.
  
  
• Disappointing but some nice features
  By A3E3EQ39FZTZEK on 2006-09-08
  I had to downgrade my rating to 1 star. NOT recommended at this time.
  
  I was pretty happy with the MX1000, especially the shape, which was more comfortable than any other mouse I've used. The Revolution is almost as comfortable and some will like that it is narrower between the thumb and the fingers and shallower under the fingertips. The MX1000 is taller towards the front so your fingers are higher off of the desk.
  
  The base has been extended under the thumb - great. Now I wish they would extend the base on the right side so my fingertips wouldn't drag on the mousepad -- I have the same complaint about all mice.
  
  The Rev is nice but I miss the up/down buttons that were on the MX100 just above and below the wheel -- I wish the Rev had those buttons. I realize the new scroll wheel is supposed to obviate the need for the up/down buttons, but so far I have my doubts.
  
  When you press down on the Rev wheel, you switch between free-spin scroll and click scroll. But this means you can't press the wheel as a SELECT button -- that's a darn shame. I'd rather have the SELECT function in the wheel and control the scroll mode with another button.
  
  So what I'd really like is an MX1000, but with a wing at the right side of the base under the fingers and a wheel like the one on the Rev. Even better, shape the mouse like the cup of a hand in a relaxed position.
  
  As far as accuracy goes, this mouse seems to have the same tracking engine as the MX1000, which reportedly works at 800 dpi and the laser works better on more surfaces than the MX700.
  
  Problems:
  
  The settings don't hold for some programs and you have to keep manually reseeting the wheel speed, acceleration and the click 1st spin 1st option.
  
  
  I have two of these and one is going back to the factory because of a bad battery. A few have posted that the battery goes for one or two weeks or more without recharging; others have posted that the battery lasts only a day or two. Both of those things are true in my experience, depending on which of my two MX Revolutions you're talking about. Your mileage might be the same.
  
  With further work on the software, and better quality control on the batteries, which, btw, are not replacable batteries, this could be a good mouse. Different enough from the MX1000 that one can't say it's better or worse -- it depends on which shape you find long term more comfortable. For now, and at these prices, I definitely wouldn't recommend purchasing the Revolution.
  
  
• Great for Macs! Smooth gliding and sexy design, but bad for Maya users
  By ASRA2UZ3JV87B on 2006-09-20
  There's not much to criticize about the MX Revo, except for its high cost (which I why I took one star off). Logitech finally got their act together with their Mac OS X drivers. You now have per application button configurations. The search button pulls up your Spotlight window. And the back button is nicely placed. The entire ergonomics of this mouse feels very nice in your hand. Plus it glides across your desk like silk. The only bad thing about the design the the thumb wheel. I've had this mouse for two weeks and I've used the thumb wheel exactly once. On the Mac, it can only be programed to activate the Program Switcher or the zoom tool (which very few Mac programs support). For me, it's just faster and less confusion to go to the dock to switch running programs.
  
  I previously had the MX1000 and the laser tracking is as good as they advertise. Logitech also made a smart move by making the USB receiver and the charger two seperate items. (Previously, your charge base was also the USB receiver). Now you can charge your mouse where ever you need without consideration for wireless reception. The tiny USB receiver plugs into any USB port on your computer or hub. It also makes the MX somewhat portable. You can leave the charger at home and go for several days without recharging.
  
  The gear shift scroll wheel is half gimmicky/half useful. I prefer click-by-click scroll wheels and that mode feels like every other Logitech mouse. The smooth free wheel mode takes some getting used to. And there is a slight, but noticable "clunk" when the wheel changes mode. Clicking the wheel button down takes more effort than it should -- which is why this is not a great mouse for users of Maya and other 3D programs (you use the middle button A LOT in Maya!)
  
  Also side scrolling is incredibly slow (like 1 pixel per second!), even at the maximum setting. You are better off just disabling it.
  
  So if you have the urge to spend $100 on a mouse, the MX Revolution is a fine choice. I would seriously consider the smaller VX Revo that has virtually all the same features, but runs on a single AA battery and is much cheaper.
  
  
• Great hardware, poor driver
  By A5KII1Z9HIATN on 2007-07-02
  The mouse itself is perfect. If you have used the MX 1000 you know the feel of this one - highly accurate tracking and a nice smooth glide on virtually any surface. The scroll wheel in either manual or free-spin mode is the best I've ever felt. The buttons are well placed and overall it fits perfectly in my hand. I've been using it for 12 to 16 hours a day for the last two weeks and have no complaints on the ergonomics. My battery results seem more favorable then some - I can get around a week of constant use between recharges without any problems.
  
  However (based on using it in windows XP):
  
  The drivers for this need to be scrapped and rebuilt from scratch. Although I do like the "shifting" aspect of the wheel between free-spin and manual mode, it becomes very annoying to have this automatically shift based on Logitech's interpretation of which mode I want to use and when. I have disabled the smartShift option in setPoint but this typically only lasts for a given period of time and then I find that the automatic detection settings have come back and I am having to fight with the mouse all over again to get it to act right.
  
  Half the time, the free-spin option in certain applications simply does not work. You will get no response for vertical scrolling until you shift back into click mode. This is particularly annoying because it's very easy to get used to keeping it in free spin mode because it is so convenient only to find that you often have to switch out of it to get the wheel to work at all. At other times, when I activate the free-spin mode, the scroll effect takes off like it's on its own mission and just madly keeps scrolling up or down without responding to any clicks (left, right or on the wheel itself) until it has decided where to go on its own, anywhere between 3 to 5 seconds after I've given up trying to stop it.
  
  The functionality of the horizontal scroll which was so useful in the MX 1000 has been cut off at the ankles. Even with the fastest possible setting in setpoint, I get no more then a few pixels of horizontal scrolling at a time. Sometimes it picks up speed and eventually gets across the screen, other times it just stays in molasses mode and I just resort to pulling on the window sliders instead.
  
  The application switcher (the thumb wheel) has inconsistent behavior. When activating it with the forward/backward motion or by the thumb click, it will present the application list as expected, but when moving through the list there's a random probability that it will interpret the scrolling process as a click and you'll get whatever item is in the mouseover without selecting it. The workaround is not even using the forward/back options of the wheel and only activating the application list with the thumb click, then left clicking on the document you want.
  
  I'm going to continue using the mouse because the hardware is well designed and is the best I've ever felt - five stars on this part no question. But the drivers for this haven't even reached the beta release stage and I'm surprised that Logitech didn't do more testing on this. No more then one star on this aspect. Overall, this mouse does improve productivity, but you will need to adapt a part of you brain to it's quirks so you can switch back and forth between what you need to do at what time to keep the mouse behaving correctly - not suggested for the typical user who just wants a well working mouse that doesn't have issues. If you like driving stick-shift then you've been initiated and will be able to accommodate to the personality on this thing... Otherwise, I would check out the MX 1000 instead.
  
  
  
  
• No functioning middle button
  By A2WQ83KSL76L74 on 2006-09-14
  Two major flaws:
  
  1. No middle button. For those of us who use Firefox, we love the middle button functionality of the scroll button to open and close new tabs. In this new mouse, despite its other interesting features, you must go thru some serious hoops to get that middle button functionality to work. By default, clicking the middle button swaps the scrolling of the wheel... you must go to some non-obvious options to get the middle button working... and EVEN THEN it is very cumbersome to press... pressing the middle button requires significant pressure, and just isn't comfortable.
  
  2. Weight. The mouse, despite not having any AA batteries, is still heavy, and it does make my wrist tired from using it.
  
  Overall the mouse is interesting... but it is unfortunate that you cannot assign middle button functionality to some of the other buttons (say the back/forth buttons). The other wheel is mostly useless... you cannot easily assign anything other than zooming or "flipping"... things I rarely need to do.
  
  
• os x support lacking
  By A3BD3D8LA4QY4R on 2006-12-07
  I had a problem with the logitech software, in which the buttons would fail to respond for 10-15 seconds after the mouse went to sleep. Very irritating. After contacting logitech support, they responded that the software was not intended for os X 10.4.8 (latest version for 2 months now?).
  
  Their solution was to not use the software, so no advanced features. The wheel is great, I'm continuing to use the mouse, but the rest of the buttons are mostly useless.
  
  Very disappointing.
  
  
• Don't buy this for a Mac
  By A1JBIMZF4Z2RMU on 2007-01-26
  If the software were as smooth as the hardware, I'd give this 5 stars. But it isn't. Sadly, its beauty is only skin deep.
  
  First impression, this mouse is very smooth. It glides smoothly on the desk, the scroll wheel rotates smoothly, even the buttons feel smooth when you click them. That's the good stuff I have to say about this device.
  
  On the other hand, the "thumb wheel" is not a wheel at all. It is a rocker switch only. You can use it to scroll through active applications on the application switcher, or to zoom in and out in graphic apps. Those are the only choices.
  
  But in fact, it doesn't really matter what your choices are, because the driver software, version 2.1.3, doesn't work. You can use it to change what your buttons do, but the changes don't get used. It returns to the factory settings, even when the control panel shows your changes have been taken. But then they come back. And then they go away again. You never really know what is going to happen when you push a button. And what good is that?
  
  
  
• Potentially Great Mouse is a DISASTER!
  By A3VS47BUEKGHAI on 2007-02-02
  You've heard the good, so i'll just detail the bad.
  
  Using a Mac Pro and Tiger 10.4.8? DON'T get this mouse!
  
  Logitech Control Center, the software required to configure the MX Revolution on Mac OS X is a buggy piece of garbage. LCC (version 2.1.3) is iffy to begin with, as it installs Unsanity's APE software which is known to cause problems for a lot of users. LCC is NOT a true preference pane either. The preference pane is only used for choosing the Logitech device to configure and if you only have 1 device, you still have to select it in the pane and click "Configure", which loads up the actual program that does the work.
  
  Worst of all, EVERY time i added a preset for an application, as soon as i changed one or two settings, LCC CRASHED! It's not possible to click configure in the pref pane again to get it back. One must quit prefs and rerun, select the mouse again, click configure again, and finally choose the preset you were working on from the menu, before getting to change a couple more settings, after which it will likely crash again.
  
  Left and right tilt of the scroll wheel are treated as only one setting in LCC, and the list of functions tilt can be set to perform is VERY limited. (horizontal scroll, brightness, volume, zoom {only works in some apps} and switch application) I didn't need or want any of them, which left tilt useless.
  
  Ditto for the forward and backward rocking of the Thumb wheel. Both are one setting with basically the same functions as tilt. So there's 4 of 8 "buttons" useless to me!
  
  The Thumb Wheel button, One-Touch Search, Thumb Back, and Thumb Forward can be assigned okay, and have a fairly good choice of functions they can perform, including different clicks or a keystroke.
  
  Then there's the Micro-Gear Precision Scroll Wheel. While the fly-wheel-like "Free Spinning" mode can come in very handy, the software tended to constantly switch to that mode at various times it was NOT assigned to; almost every time i switched apps.
  
  I tried "Auto-Shift" mode which leaves the CENTER BUTTON free for other functions, but found it too difficult to adjust the shift speed to be comfortable for every piece of software. I wound up setting most apps for manual shift, which is accomplished with the center (scroll wheel) button. That's 5 of 8 "buttons" now virtually useless.
  
  The product claims something like 2 week battery life. Mine ran down in about the same time as my old MX-1000, or roughly 3 or 4 days. It also recharged quickly like the MX-1000, at least.
  
  I've spent the 3 weeks i've owned this monstrosity exchanging messages with tech support and trying various time consuming diagnostic steps in an attempt to identify a possible reason for LCC's terrible behavior. I've had to restart my Mac more times in this 3 week period than i typically do in 3 months or more during periods with lots of system updates. All this has yielded absolutely nothing. LCC just won't play nice under any circumstance i can find.
  
  In this same short 3 weeks, the ratcheted "Click-to-Click" mode of the Scroll Wheel has COMPLETELY BROKEN DOWN! The wheel now shifts between free-spin mode, and free-spin mode with slight friction. NO CLICKS.
  
  This hunk of junk is going back to the store as soon as i can lay my hands on another MX-1000.
  
  ONE POSITIVE NOTE: The MX Revolution CAN be used with USB Overdrive (10.4.5) with somewhat more success. No Autoshift, of course. Also, for some reason, USB Overdrive does NOT detect the "One-Touch Search" button. It DOES make available left-tilt, right-tilt, forward-thumb-wheel, and backward-thumb-wheel, as 4 separate buttons which can be assigned to anything in that software's long list of functions.
  
  
  The reasons for my giving this mouse 2 stars instead of 1 are it's incredible comfort in my hand, the nice feel of the scroll wheel, the number and good placement of buttons (almost as good as the MX-1000), and usefulness of the scroll wheel's "Free-Spinning" mode.
  
  I probably would have kept it and used USB Overdrive, doing without the one button, IF the scroll wheel mode-shifting hadn't broken down after such a short time.
  
  
  ATTENTION LOGITECH: A mouse with this ergonomic design, this scroll wheel with a rugged purely mechanical mode switch button, the thumb wheel, AND the button arrangement of the MX-1000 would be the ultimate mouse!
  
  
  
  
• MX Revolution: Great mouse . . . execrable software
  By AE7EQ5123M75T on 2007-02-16
  I've always found Logitech's products, as well as the software that runs them, to be more than a cut above Microsoft's. In fact, I think that the MX700 is the best mouse ever, and I'm disappointed that it's no longer available. I got the MX Revolution hoping that I'd found a worthy successor. Not so.
  
  The Mouse itself is well-designed. Be sure to check out the free-spinning wheel, which I discovered only by accident. Want to scroll way down, fast? Just give the wheel a really hard flick and it starts spinning like a frisbee, and down (or up) you go at warp speed (pardon the mixed metaphor). I also really like the idea of the thumb wheel, which is why I bought the mouse to begin with; it seemed a good successor to the MX700's conveniently placed scroll up and scroll down buttons, which I use all the time. Unfortunately, that's how I found the Revolution's fatal flaw.
  
  The whole point of having so many buttons is to make a mouse flexible, right? And it follows that for maximum flexibility the buttons should be easily mappable to a wide variety of functions and keys, right? Well, on this mouse, it ain't so. The SetPoint software that comes with the Revolution offers a sharply limited range of options for programming most buttons, thus kneecapping this fine hardware quite effectively. The most extreme and ridiculous example of this? You can't even switch the main left and right buttons(!!!), one of the oldest and most basic button mods in mouse history. I know it's a right-handed mouse, but some of us right-handers WANT to switch the buttons. (Hey, devs, did your lawyers make you deny us that option out of ergonomic/stress injury lawsuit concerns or something?) And it isn't just me. I've heard professionals in other fields (mainly scientific and technical) complain that the Revolution's buttons can't be remapped to the most common-sense configurations for the mainstream apps they use day-in, day-out--configurations that other mice can adopt as a matter of course.
  
  So here I have this high quality (and very expensive) mouse that, for me at least, won't do what I want and need it to do. I can only hope that someone at Logitech will read this review from a loyal customer and give us the software that will let this mouse achieve its full potential. Until then, I would advise people not to buy this mouse unless 1) you don't mind dropping a lot of money for the ergonomics AND 2) you don't plan to do any remapping. If you need to remap, don't buy it, and if you don't need the ergonomics, there are less expensive (and more flexible) alternatives.
  
  
• Just awful
  By A1UNVPO2N8NJBU on 2007-04-15
  I'm a software developer who spends many hours daily at the keyboard and mouse. I purchased this mouse for my desktop machine. Owning a VX mouse (which I am very happy with) I was interested in a rechargeable version for my desktop. Here's my list of complaints:
  
  1) you can't use this mouse with your fingertips (therefore little precision), you must grab it with your entire hand. VERY UNCOMFORTABLE.
  
  2) as a result of no. 1, I suffered extreme pains and cramps in my thumb and hand after 10-15 minutes of use.
  
  3) it's way to heavy. The best mouse is the lightest mouse! This thing could be used for a wheel chock.
  
  4) the "quick flip" wheel is terribly located under your thumb. Extremely uncomfortable, and a feature I don't really find any use for. ALT-Tab works better. And you can't drive the mouse around with your finger tips as a result. It's like having a rock in your shoe and trying to walk on it.
  
  5) worst of all- what's with that TERRIBLE extension of plastic that "supports" your thumb and is so large?!
  
  6) You CAN NOT use a wrist rest (essential for me) with this mouse, because you must wrap your hand entirely around the mouse as the design intends. If you try, your wrist it bent at a terrbile angle. This caused numbness and "buzzing" in my wrist in 10 minutes.
  
  7) several other buttons intended to be activated by your thumb are also terribly placed, they are always under your thumb. Very irritating after a while, feeling those poke into your thumb for no good reason.
  
  In short I think this mouse is a terrible design, I doubt the people who designed it have used it themselves for any length of time.
  
  I'm returning it. Something I usually don't do with a product I'm unhappy with. But this thing is so poorly designed they need to know.
  
  
  
  
  
• Terrific
  By A9KVJ7A8Q7N8H on 2007-04-16
  Unlike the person who wrote the review prior to mine, I seriously have no idea how they came up with all of those negatives. A light mouse? You have to use your entire hand? This is the most efficient mouse I've used. I love the design and unlike the previous reviewer, I didn't experience any fatigue in my hand or wrist after extended periods of time, much longer than 10 or 15 minutes. The charging feature is also a great addition, and make it very usable. This is a great device!
  
  
• Don't buy the hype: do your research!!- *UPDATED*
  By A30XVXQHZAYMPL on 2007-06-16
  Major problems:
  
  1.Sudden freezing unpredictably, especially when the mouse pointer changes from arrow to text line. Other times it stutters as you're moving the mouse. This is a well know bug in the forums. Just do a search.
  
  2. Used to the wheel to middle-click? Forget it. It takes force and usually slips. It's useless as middle click function.
  
  3> It would make sense to configure the button just behind the wheel to act as middle click button, no? Well you can't because it won't allow that function. I DID program it to close a window, so if using a tab browser it's easier to close it instead of mouse gesturing.
  
  I programmed the the two arrow buttons on the left edge of the mouse as middle click. But they are paired in function so they both do the same thing. In Firefox it's too simple to navigate back/forward, so I don't need them anyway.
  
  4. There is NO saving the changes you make in the software as different profiles. So if you edit one menu, you have to go back and reset the rest of the functions all over again.
  Annoying software.
  
  SO, how come I didn't give just 1 star? Because the kids think it's cool and are jealous. That's worth maybe half star.
  
  **UPDATE**: On further research I finally figured out the freezing problem with this mouse: conflict between Bluetooth and 802.11b/g routers. The latter operates at 2.4 GHz, a band which apparently interferes with the BLuetooth transmission of this mouse.
  
  Solution:1. Move the router and mouse station really far apart. or
  2. Upgrade to 802.11a router which works on a 5 GHz band, thus eliminating the interference.
  
  My other gripes still stand, thus 2.5 stars.
  
  
• Great mouse - for a week
  By A2SIOIP3E1LIVU on 2007-10-04
  This is a great mouse - probably the best one I ever used. Unfortunately, the batteries are a wonky and the unit stops working after a week. Consider buying the notebook version which has standard, not rechargable batteries.
  
  Logitech support not very good, but that is par for the course these days in consumer products.
  
  

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