I seam to have a small problem. I got a call from a user saying her PC was shutting down every 10 minutes. I figured perhaps its was the power settings, but she checked them and its not. I also figured perhaps it was that blaster worm, however I took that off a week after she got it (its been a few months now) Her OS is Windows XP Home Edition, We have firewalls installed and a virus scan, but I am unsure when or if she updates them. What could be causing this and has there been any resent worms or viruses that cause this besides that blaster worm?