Hi, I have an MSI R7 370 gpu which had the black screen when logging into windows problem. I recently got it RMA'd, and that fixed it for a few days, but now it has another problem. Whenever I play a game, or have a gpu stress test going, the screen will go black and be unresponsive. I have checked temps, and cleaned out my entire computer case. Im currently using another gpu in place of the R7 (a GTX 550 TI) , and it works fine, so I don't think it is the power supply. Does anyone know what could be wrong with it?