I have had this mouse not quite 10 months and it worked great until this week when it started to move to the upper left corner of my screen. I even changed batteries and still the same results. I will not buy the same brand again.

I would not recommend that anyone purchase this item. It is the worst wireless mouse that I have ever used. It doesn't track half of the time.

I bought this mouse in March 2010. The longer I use it, the worse it gets. The cursor starts shaking and training off in different directions. As of July 10th it just stopped working. I change the batteries twice, tried rebooting but now it will not...

I bought this mouse and the longer I own it, the worse it gets. You can be working on a document and the cursor starts shaking and training off to the upper left. Don't even try this on something but a flat surface because work is impossible. Do not buy.