im using ubuntu 10.10 since november 2010 and never had this kind of problem. Look, today I just turned on my netbook and I couldn't move the mouse, so I looked up for the fix and did this.
sudo modprobe -r psmouse sudo modprobe psmouse proto=imps cd /etc/modprobe.d/ sudo gedit options options psmouse proto=imps
The mouse began to move, but the scrolling was gone and can't make it work again. I hope someone can help solve this. Thanks