A few months ago I received a Microsoft Wireless Optical Mouse Blue, and I installed the Intellipoint 4.0 software. Later on, I installed the 4.1 software and I may or may not have uninstalled 4.0 beforehand. And as a result, for the last month or month and a half, I have experienced the mouse seeming to occasionaly have a mind of its own, moving very quickly to one of the sides or corners of the screen until I shook it about.
I managed to reproduce this extremely annoying effect by lifting the mouse and putting it back down in a rapid motion, just basically tricking the optical eye or something like that. I replaced the Blue mouse with an Intellimouse Explorer Optical, yet there was no improvement. Of course I then uninstalled the Intellipoint software, yet without fixing the problem. I followed the instructions on this page: http://support.microsoft.com/default.aspx?scid=kb;EN-US;321122
but the problem STILL occurs.
I'm totally at a loss. The only thing I can think of is to format my hard drive, which I don't really want to resort to yet. I know the problem only occurs with optical mice, but ball mice aren't really an option at this point for me.