I also have this problem. I disabled scrolling and that has
solved 90% of the problem. I went to control panel -> keyboard -> SetPoint Settings, clicked on the ponter button and set scrolling size to "none". Of course, now
I can't use the wheel, but at least I CAN use my computer
now. I still have erratic scrolling of drop down menus, and I
guess I'll have to live with that for now. I hope this helps.
Kathy D
September 2010