i installed suse 10.2 yesterday, then i tried video playback after installing vlc, and xine from packman. VLC was all crappy, and skipped frames, it was going like crazy, so i installed kaffeine, and it worked fine, then i loaded a .avi file and something ended my X because i got sent to the login window. Then i logged back in and tried to play another movie and it was really crappy, this picture is an example, it happens with kaffeine too:
my sys specs:
pentium D, 2.8ghz
2048mb of ram
ati radeon x1650
ati drivers installed and runnning ok.