GNOME desktop, 11.3. I followed the restricted media format installation. It passes the MMCHECK script. I have only 1 sound card, and only do 1 thing at a time. No audio playback programs produce sound except xine. The soundcard “test” function produces sound, but there is no sound from Firefox. No system sounds such as open and close firefox or other windows. Installed RedDwarf media plugin, which is verified in the preferences window of Firefox.
I assume I have messed up some configuration files. Suggestions on what to look for?