I posted a similar thread earlier, but I thought I'd post a more detailed one now since it didn't turn up much. After 5-15 minutes of gameplay, the screen will turn grey, and a few second later the music will cut out and be replaced with a dull buzzing. At this point I can't do anything (task manager/exit the program) and I'm forced to restart my computer. I can't finish a single game unless I save and quit after the first level. Any help would be GREATLY appreciated! Specs are below, since someone told me I should post them. If I've missed anything important, let me know. Windows 7 64-bit Operating System Processor: Intel(R) Core(TM) i5-2500 CPU @ 3.30GHz 3.30GHz Installed Memory (RAM): 8.00 GB Graphics card: AMD Radeon HD 6900 Series P.S: I'm pretty sure it isn't overheating; the tower is clean inside and the fans are all working, and the basement is cold.