Alright my computer has been shutting down lately while playing World of Warcraft. I just bought a new video card ATI 9550 256mb card, a new 512 ram stick, and a new 480watt powersupply for it. I was told it was the power supply, but it still shuts off. Any idea on what it could be? And before I put all this stuff in it I reformated it. Help me figure it out please it's annoying...really annoying.