Ok, I was playing Oblivion and suddenly the game froze as it was loading a level. Tried to reboot, no signal to the moitor. Left it a while, then tried again, got a signal but then it froze on post, just after it told me the chip, but before the mem. Tried to restart a few times then it posted into windows but took a lot longer. Tried to restart again, and no signal. Kept trying to restart still no signal. Bugger this methinks, time to clear cmos, do that and still no signal. I can hear it going through post and into windows (i think) but no signal. Card is a Leadtek 6800 gt at stock. Ideas?