Sorry, I should have been a bit more precise. Start gnome-mplayer -v and then try to play a file. This should give you a lot of output - including output from mplayer. Especially the output from mplayer should be interesting for debugging this issue.
Sorry, I should have been a bit more precise. Start gnome-mplayer -v and then try to play a file. This should give you a lot of output - including output from mplayer. Especially the output from mplayer should be interesting for debugging this issue.