I need some help identifying this problem. Here's the problem, my friend's touchscreen doesn't work well playing games. Like when you turn it on it works with the menu and works in picto chat. Then trying out my flashcards on it, it works with those and even running some homebrews it works just fine, but if I try to run a DS game or a rom on it, it locks up and will not work. The next strange thing, if you go to recalibrate the screen the DS freezes. Does anyone know what's wrong with it?