RTP stream?

[mosqa]

zdravim
na intraku mame po sieti streamovanu tv cez rtp, a mne to pod ubuntu hh nejde rozbehat..prehravat by sa to malo cez vlc, ten mi v konzole vypisuje toto:

VLC media player 0.8.6e Janus
starting VLC root wrapper... using UID 1000 (mosqa)

** (.:1587): CRITICAL **: gtk_pizza_set_size: assertion `pizza != NULL' failed
[00000329] main private error: cannot pre fill buffer
[00000333] main private error: cannot pre fill buffer
[00000337] main private error: cannot pre fill buffer
[00000290] main playlist: stopping playback

firewall je vypnuty, ale aj tak mam ztoho pocit ze to bude nieco z nastavenim fw/rtp, kedze z playlistu mi idu len dve radiostanice ktore su cez http, ostatne kanaly su cez rtp a tie ani nebliknu. skusal som aj vlc 0.9.4, tiez nic, takisto smplayer. za vsetky rady vopred dakujem..