Can't get BSplayer to play video

I got a list of things that the people on this board said I needed to use to make the player work. When I go into preferences and check the Video settings, it shows divix 3.1 and 4+ but there grayed out and I can't change any of the preferences. None of the other divx or xvid or any of the other thins on the list show up in the player. It plays the sound fine, but the video is a black screen.