Random exit during play

[Lord Kristof]

After playing for about 10 minutes the game just exits does anyone know how to fix it? I have the latest patch

Win XP
1.6Mhz processor (1900+ Athlon XP)
64Mg Video card
640 g Ram
NVIDIA nForce APU sound

[vmxa1]

DL a mem chcker and run it to see if you have a mem leak. If not test another video card.