I just installed Jaunty replacing Hardy that I have been using for a year now and all the video players suddenly disappear when I try to play any format of video. I can start the players fine but as soon as I point it to a video it just disappears with no error notice or anything. I have the Medibuntu repositories and codecs installed exactly as I did with hardy (except I used the ones required for Jaunty). I have installed VLC, Mplayer, and movie player installed by default. All three do the same identical thing.
Any ideas where to begin would be deeply appreciated, thanks!