Hi, I had this problem a long time ago, but it got fixed with some thermal paste to my gpu. now it's happening again. what happens is, that the pc will run perfectly, but when I try to run a game, it'll run it for about 2 minutes, then the screen will go black (and give me that digital\analog message as if it's lost its signal), audio will stop, and the computer will hang. keyboard will still work though (num lock, etc.) I think it's the gpu, but since a new gpu would cost me about 150 USD, I wanna make sure that a new gpu will solve my problem. Thanks!