My tablet's touch screen (resistive?) had no problems for 1st 2 years. Lately, it will stop responding for varying amounts of time, including the power off message. It happens most often when I am playing a game. I removed unnecessary programs and files from the tablet, cleaned the surface, and used a new stylus. Now, I have been unable to turn it off for the past 2 hours. Can I cure this?
Software/Hardware used: google nexus, second generation