openSuse 11.0 realplayer no audio output

I try to use realplayer in opensuse 11.0 to play .rmvb file, but it only outputs video stream with no sound.
The rmvb file is good as I can play it under windows XP.
The sound card must also be installed correctly as I can play mp3 file. Can’t figure out why.

I believe smplayer/mplayer and possibly xine-ui will play rmvb. Make certain you have the packman packaged version of libxine1 and also have w32codec-all from packman installed.
smplayer: PackMan :: Informationen zum Paket smplayer
mplayer: PackMan :: Informationen zum Paket MPlayer
mplayerplug-in: PackMan :: Informationen zum Paket mplayerplug-in
w32codec: PackMan :: Informationen zum Paket Win32-Codecs

After I installed w32codec, realplayer works like a charm.
I’ll try smplayer later. Thanks you!