Originally Posted by TB0ne
Might help if you said what version/distro you're using, under what window manager, and give some details about your system.
I'm guessing you're using KDE4, based on the problem description. The gstreamer and/or phonon libraries have to be updated. Whatever distro you're using has a software management tool, as SuSE does under YAST.
I built this linux distro via linuxfromscratch.org. I'm using XFCE4. This is a source-based distribution wholly built from scratch and with no pre-determined distro-based software. I have no Yast or Synaptic or dpkg.
I did get audio to work in Pidgin and Xchat, had to specify "aplay %s" in pidgin under sound command and "mpg123" for xchat.
Although under open source eudora (testing) audio does not work right, i hear static while the audio file is playing, drowing out the actual audio. Eudora is basically a re-branded Thunderbird. Eudora has no way to specify sound server or command.