11-15-2012 12:05 PM - edited 11-15-2012 12:07 PM
NOTE: Try covering the touchpad with a piece of cardboard or paper while typing on the keyboard to see if in fact the touchpad is being touched while typing.
NOTE: The remaining step of this procedure will be performed with the computer in the Safe Mode with Networking mode.
NOTE: The touchpad drivers can be reinstalled through the Drivers & Software link on this page.
The troubleshooting steps listed above should resolve your problem. If you have completed all of the steps and the problem is not fixed, service may be required.