Recently, when I view movies in my 'gmplayer', I get these green lines when I use the xv (X11/xv) drivers. They appear on the bottom of the screen that flickers on and off. It's kind of annoying. however, when I change my video output to something else, like the X11 (XImage/Shm) drivers, then it disappears. THe only problem is that if I use the X11 drivers, I can't play in full screen because the window size stays fixed no matter how big I make my window bigger. I just want my regular XV (X11/xv) drivers to play normall and play full screen when I want without having green lines flicker on the bottom of the screen. This happens on all video media files.

I recently installed the new ATI drivers, 3.2.8. Would these have anything to do with affecting my video in my Mplayer?

you may want to switch to Red Hat as it does not do that on RH9 [lol im just KIDDING with ya!!! lol]

Does this happen with all movies when using that driver??
Have you tried switching the codec to one of the windows codecs?

I found my problem.

I'm running Superkaramba (a KDE desktop enhance program) and that is what is causing my weird video problems. When I disable it, the videos play fine.
Problem solved! Looks like I don't need to switch to RedHat.

for full screen run mplayer as "gmplayer -zoom"

heh heh - nice one.