Ok here's what you should do. Uninstall Matroska and dsp2dshow (I have no idea what those are but i'm gussing they are either player/codecs). Then if you look at the post I made in this thread, you should be fine. Just download and install all the codecs there and you should be able to use Windows Media Player to play the epsiodes. If you want to (you probably won't have to), you can also download Vlc Player. Hope I could help.