My 4000 mouse with the v2 transceiver works fine with Intellipoint, but the v1 one does not, and I haven't found a solution. Very disappointing MS software / hardware won't even work together. Since I'm running this on WinXP, I doubt MS support would help me with this problem.

Works on most surfaces; Batteries life seems ok to me; I turn off the power switch when I'm not at my computer; The magnify feature is one of the main reasons I buy / like / use these mice

Rubber on scroll wheel can disintegrate after awhile; Tried storing transceiver in mouse once and needed a pliers to remove it; I'm having a problem with Intellipoint software not recognizing the v1 nano transceiver on this mouse and my 3500 mobile mouse also, so no button customization is possible...

Best Mouse of all! Today I'm going to buy the same mouse again. Microsoft 4000. I wore out my other one. I want a change, so I'm getting this same mouse maybe in another color.

After years of use, my mouse finally gave it up. I liked the first one so much, when it broke I ordered another of the same model.

I like the 3500 better but this one comes with the addition of a back button, side-scrolling and is slightly larger in the hand.

takes one battery and has the amazing bluetrack

rocks back and forth on a flat surface; scroll wheel sucks; It has no stoppage between scrolls so is useless for switching weapons in games; It also seems to be inconsistent and stick, As with all microsoft mice with the side rubber, it wears out and gets gross after a few years of constant use

A decent mouse for the price. The rubber o-ring that surrounds the scroll wheel lasted about 2 1/2 years before it disintegrated. I still use it though and bought another mouse in a different color for back-up just in case something else was to happen.

I've had 3 of these mice now. Two of them have had a problem with the scroll wheel. The latest one works fine when scrolling down, but the wheel is very sticky when scrolling up. A close examination shows that the rubber of the wheel just rubs against the housing when scrolling up, which makes it...

Ate batteries right up. Started to become unbearable to use with clicking required harder force and middle mouse button breaking within 18 months. I did love it while it lasted but I'm pretty sure i won't be spending this much ever again on a mouse like this.

I have owned several this model. They get progressively worse. The first ones I got lasted me several years before the left mouse button stops responding. You have to click it 3 or 4 times to make something happen.

Bought three over the years. I picked it because it had a quieter clicker (higher quality) than most and less annoying when madly clicking. Bang for buck it's the best basic mouse I have ever bought, and I have bought many a mouse over the years.

I am not sure of this is worth the money. It probably is but did not quite provide the extra difference a premium mouse should offer. There is nothing wrong with it; more nothing especially right with it. The fact that it is better than OK probably means I am being fussy.