Warcraft 3 keeps restarting

[mickey18]

hey i recently bought warcraft 3 reign of chaos and the frozen throne expansion.
i installed it and started playing but it restarts my computer every 5 to 30 mins i cant figure out whats wrong with it i ran erroe checks and nothing comes up and did a defrag and it still does the same thing
i have
windows xp 5.1

system model P4VT8+

Bios default system bios

processor Intel(R) Pentium(R)4 CPU 3.00 GHZ(2CPUs)

memory 1024mb ram

page file 435mb used, 1258mb avalibale

direct X version 9.0

can someone please help me

 

[Azzur1]

try checking if the cpu fan is running all the time when u start the game, may be under load ur system heats up and its causing the frequent restarts.