Within the last week, CoH has begun doing something that causes my PC to shut down and reboot itself without warning if I play for more than 10 to 20 minutes at a time. At first, this was reported as my ASUS motherboard using its "power surge protection" feature, but the problem has persisted even after disabling that feature. No other program that I run on my PC seems to do this. Monitoring my power supply for voltage output hasn't revealed any unusual activity, so I don't believe its my power supply. My BIOS and all my drivers are currently up-to-date. Any suggestions on what to try next?