Recently, I've been having a little trouble with my XBox 360. I'll load it up, play the game, I'll be playing for anywhere from 5 to 20 minutes, and then it happens. The game will freeze, The screen will become staticky, and then after about two minutes, the screen will turn into a checkerboard, though the game screen can still be seen clearly. I try to open the XBox Dashboard but that won't work. What's going on?