Little bit late here, but... Did the latest drivers cause this problem as well?
It could be a driver problem, where the newest one is more of a bug than the previous.
it could also be a hardware problem, meaning that the tablet is giving up the ghost. Have/are you able to try it with another computer?
But it could also be due to the operative system.
However, a quick google search led me to two different topics.
Have you tried them?
That's the only advice I'm able to give you, I really do hope you'll be able to resolve it, because... it's a really weird problem. I've never seen such a thing before, and it sounds so odd when you're explaining it.