3) Is my optical mouse the problem? Do I have to revert to a rollerball mouse?
Hmm, good point. I thought that could be one possible cause since it seemed to do the same thing with a wireless AND wired mouse. The desk I'm using is a cheapy particle board desk with a slightly laminated (I guess) sheet of woograin looking covering all over it. I was thinking maybe the woodgrain lines could be what was causing the optics to freak out. But I don't think I can stand to play on a mousepad though. Oh well, guess I'll have to live with it.