Hi, I'm using hardy (8.04), although I had the same problem with Xubuntu 7.04. I'm a new user, I've been able to get divx files and DVDs to play, but the screen is stretched so wide that it only fills about a third of the screen vertically. I can't seem to change this by changing the aspect ratio. I've tried this in Xine and the default totem player with the same results.