I had 2 customers call today with the same problem. The first system was an HP, and the second system was a Gateway. Both system are running XP Home with SP2. They both had the same problem. When they are working on their machines, it looks as if the computer went into sleep mode and will not wake up. The only way to get it back up is to hold the power button in till it restarts. I had them turn off all power saving features in XP and also the screen saver. I just thought it was strange that 2 people with different machine are having the same problem. Does anyone know if this could be a virus?