I've noticed lately that my original N7 had developed it's own brain...if I'm playing games it will start making moves by itself and blocks me from making any, also sometimes it will enlarge the screen so it's unplayable. There have been times it would not let me clear apps or even let me log off without trying 5 or 6 times. I have an extended warranty that will expire in July and was wondering if it's time to take advantage of it and get my money back. Has anyone else's become possessed?