Hey, I can play Mpeg in WMP, but I have AVI files that one play the video, they play audio and they play perfectly in VideoLan, but won't play in WMP, I've tried downloading and installing the DierctX codecs, but have not found anything that works. It also won't play DVDs. I have WMP 11 but it happened in 10 also. The problem began occurring after I formatted and reinstalled everything, and while trying to get rid of useless programs to save space, I think I may have deleted a key component. Any Ideas?