My dell xps crapped out on me..screen went blank but would start in safe mode...I removed every componant inside the case to test as I went, found out one of the video cards is bad....im running two invidia gt cards plus agea graphics.........felt much better finding the problem and dell is sending me a new one under warranty. Game plays on one card pretty good. so if your screen goes blank or the game locks up it may be the video cards.`my computer freeze framed a few times before it crapped out.