Version of TCO? 1.9
Version of Warcraft 3? 1.26.0.6401
Is you Warcraft 3 settings on high? yes
Any other useful information? none
You forgot to give the most important information; do you get a fatal error?
And if it's ch. 02 or 03
. Although if it happened in ch. 02 that wouldn't be that weird since his version is 1.9.