Very frustrating idiosyncrasy! I don't know if it's a Dell or a Microsoft issue and "Frankly my dear...." Anyway, I've tried every suggested solution from Microsoft, Dell, etc. Then found a freeware application called TouchFreeze ( http
/code.google.com/p/touchfreeze/ ) It is the ONLY solution that worked for me. Takes all of 10 seconds, but it has completely eliminated the problem! Why couldn't MS or Dell have done that!!