Not really a great amount of help but here's a few links:
Need to scroll down to bottom of page for answer in this one! , & these others are the same prob:
2nd link (click me) , & this last one:
3rd link for similar prob And along with VLC there's also MPlayer:
http://mplayerosx.sourceforge.net/ Personally I hate wmp & touch it only as a last resort. It's so unstable, unreliable, & wants to link you to M$. Why not try to dwnld alternative movie formats. And get a few xtra codecs as well; eg: divx, 3ivx, etc.