wow. you dont have to reinstall -.-
Ok listen.....
One, this belongs in help.
Two, what ever compatibility you had it set on, thats what it needs to be on when you run it.
For instance i had to do the following...
Install patch
Run combat arms
Task manager out of it
Set it to no compatibility
Run combat arms
Task manager out of it
Set to windows 2000 compatibility (thats what it was when i installed the patch)
Run combat arms
PLAY
Hope this helped.