hey...i got some gameloft HD games like nova 2, lets golf 2, asphalt6, etc. whch when i run they start perfectly and even the frame rate is fine. but 5 mins into these and the screen gets stuck and the phone restarts. These games should work on my phone and they support my device on the site. so what can be the problem and how can i rectify it? any help would be appreciated. thanks. btw i got an xperia arc which had 2.3.3 preinstalled in it !