When I started playing WoW on my laptop it would overheat and die. This is going to sound really odd. Since there was nothing I could do about the ATI GPU chip overheating with wow running I simply put the laptop on a aluminum or copper cookie sheet. Having the laptop sitting on a cookie sheet allowed the heat to dissipate away from the bottom of the laptop where the gpu chip was located. Doing this allowed me to play wow without any heat issues.

Drommon