Game software lockup

[zalsrevenge]

Uninstall and reinstall video drivers. Test again to see if it is still giving you problems
If it is, try a different driver for your card. Maybe beta drivers or an older revision.

Make sure the video card is in there correctly. Re-seat it if needed.

If you overclocked your video card, reset it to factory default. Sometimes when you mess with the clock rates, or more specifically the voltage it can cause your system to crash. Even if it's not overheating.