My box was stored at my girlfriend's place over the summer, in the case box in the closet. I bring it home after break and start it up. Everything seems fine, the mobo loading screen pops up, gets to the first windows vista loading screen then goes black. I've tried to start it at least 15 times, even with the case open trying to get some sign of what the deal is but I can't figure it out. I don't think its overheating because the computer has just turned on, and the time in which it turns off seems almost random. Sometimes it will get to the windows loading screen sometimes it will turn on then almost immediately turn off.