I don't know if this would be a virus problem or a hardware problem. But I ran the Malware software to remove the Tops Hits Arcade virus and after the scan was done, it asked me to reboot. My PC booted down but hasn't powered off and the fan has gotten much much louder. I'm afraid to manually power down the pc. Any thoughts on what to do next? If you think this is a hardware issue, let me know and I'll repost in that forum.