I rolled the driver back and it's doing the exact same thing. It's weird, it was working ok when I left but now coming home doing the exact same things it's not working... I've uninstalled every conflicting driver I can find.
Edit: The PSU in question is this. http://www.newegg.com/Product/Product.aspx?Item=N82E16817159088
Further edit: I can play Battlefield Bad Company fine, but if I alt tab or open any other program it freezes and loses the connection.