My desktop is brand new..like 2 weeks old. It just started doing something I have never seen before, the pc will completely freeze up and my monitor becomes a blank white screen with lines through it, it does this about 5-10 minutes after it boots up. I have had PC's freeze up before but never made my monitor become a blank white screen. My brother in law had closed some programs that were running in the background and that seemed to help but it is doing it again. Anyone have any clue as to what could be causing this? I have googled but can't seem to find anything on this.