Re: Mouse cursor jumps without doing any activity on touchpad in windows vista
First of all,try to update the driver of your touchpad from the manufacturer's website. If it doesn't solve your issue then hide the mouse pointer trails. For doing the same, open "Control Panel" and then type "Mouse" in the search box which appears at the upper right corner. Now click "Mouse". After that click on "Pointer Options" tab. Under visibility, uncheck the option which says "Display Pointer Trails". It will hide your mouse pointer when you will type anything.
~Support
Community Manager