When I'm playing WoW, about 30 minutes into gameplay, my computer freezes, my monitor is still on, and my computer is still running, but my keyboard / mouse / mic ALL shut off, and I have to hard reboot.
I've also noticed this on Warcraft III, about 30 minutes into gameplay the exact same thing happens, I have to hard boot. It only seems to happen with Blizzard games because I was playing Age of Conan for 3 hours, and my computer did not freeze up.
My computer is not over heating, the temperatures at the time of the shut down is around CPU 19-24°C
and System 30°C. I'm not sure of the graphics card temperature, but like I said before, I was playing Age of Conan on FULL graphics for 3 hours and nothing happened.
I am running Windows Vista Home Premium 64-bit. My graphics card drivers are up to date, as well as Windows Vista. Also it sometimes switch my system date.
My computer specs are:
Duo Core 3.16ghz
EAH3870 X2 1GB
4gb DDR3 RAM
ASUS P5E3 Premium