Hi, not sure if this is the correct forum, but after a while my pc will freeze, the screen goes blank and the pc just stop responding. The monitor comes up with no signal. The power light on the pc stays on and so does the hd light. Only way to to overcome this problem is to hold the power button in and reboot. Now this has happend a few times, even when the pc is "at rest" by that I mean just sat downloading. Could it be a virus? I have PC Cillin installed and it hasn't detected anything. Suggestions please.... Also, just played c&c zero hour for the first time in ages, and after about a minute of playing, I self destruct, Coincidence? I have recently replaced my motherboard and graphics card, which after some minor problems now runs fine. The Freezing problem has only started a couple of days ago. The pc has been running fine untill now.