I'm experiencing very strange mousepad behaviour. It is working fine, then suddenly the cursor jumps to the top right-hand corner of the screen and when dragged away it jumps right back to the top right hand corner.
Moving the finger vigourously across the touchpad for a few seconds eventually seems to get it back on track and the mouse pad / touchpad behaves normally. Sometimes it needs a reboot to bring the mouse pad back into line.
Any ideas? thanks.