Yes the Compiz is enabled, and yes it is so with any movie. I have GeForce 4 MX4000 64MB, AMD Athlon XP 2200+, Kingston ValueRAM 512MB DDR400. Here I have GeForce 7600GS AGP, which I don't use (because it is well let's say "damaged" - it works fine on some games and it's buggy in others (which worked fine when it was new) so I plugged it out, and now I use my old card). I never thought it could be because of card, because on Windoze it works fine, but it may be Compiz or something else I don't know , and that's why I'm asking you guys. Thanks again.