help

I can play black ops perfectly but when the match is done the game allways close and it says its a direct3ddevice9 an unexpected error occured.
I have tried reinstalling directx and stuff not working

I really don't know what to tell you. But go to your steam folder > steamapps > common > call of duty black ops > right click on BlackOpsMP > properties > Compatibility and Check "Disable Desktop Composition"

Helped me with some errors