OGG codec problem

I'm sorry to bother you, but I feel useless and I haven't been able to solve my problem over the period of an hour. I know I know, just listen.  So I had my ogg codec working fine right? And then I wanted to watch Last Exile which is MKV format. So I went and downloaded the Matroska Pack and installed it and now my ogg stuff is screwed up. The audio plays but the video just..doesn't. I even tried reinstalling the ogg package, but to no avail. When I tried to install TCMP it had errors with the ogg.dll, vorbis.dll, and the other ogg dlls. As I said before, the sound plays but when I open the OGM file with WMP (which I have used to watch OGM formatted videos for weeks) it comes up with a string of errors. Any help or direction would be greatly appreciated.

Well I feel like a moron. It isn't a problem with my OGG codec since it is just sound, and the sound works. After further analysis of the error, its something with my DivX codec.

Combined Community Codec Pack.