I agree... Of the 5 we had issues with, one (the first one) was more intermittent then the rest and took a long time to troubleshoot. Like brokencrow suggested, try disabling the touchpad in BIOS and using a mouse and see if the issue goes away. I suspect that it will, although I do have one optical mouse that likes to move the cursor all by itself every so often - seems to be very sensitive to reflections and glare.
