I recently got a motorola backflip from a friend (I lost my phone and needed a loaner till my next upgrade). I have bought a couple apps and games. The problem I am having is with x-plane, minecraft portable edition and a couple other apps. When I run them they say the process failed and I have to force shutdown. I had this problem on 2.1 so I updated to 2.3.7 using a mod (which I had planned to do anyways and although the problem happened on less apps, it still does happen. What causes this and how can I fix it?