A Post from Blight @doom9
"ChristianHJW:
You can't enable overlay mixer in FFDShow, it should be done on a Player level. As the overlay mixer breaks VMR9 support or any internal overlay mixer code in the player. Having it on by default would make ffdshow very unstable."
WMP9 use VMR9, which is bad on Win2k. To get rid of the problem, disable "Use overlay mixer" in new ffdshow built.
Better at all don't use WMP9 as it is very SHIT in win2k. Stick with WMP 6.4.
@pcbug
Build 20020617 don't use overlay mixer, that explains everything....