I need big help to activate the sound through Xine and Noatun(=Kde Media Player)-

config=redhat 7.3+kde3.0+sound drivers=aureal8810 install from cvs , (or rh 7.2=same problem since the beginning of my linux configuration=nov2001)

I've try to get through this big problem since a while but-
I've used the unixtech.be general forum (you can watch my similar question (message from rookoo 20.05.02 (french langage)

the sound works fine through XMMS et CD Player(Kscd):

- but no activation through XINE, or NOATUN(?)nothing happen when choosing a sound file ( mp3 files for example,however they appear in the playlist ) ,-using Gnomemeeting =>video=ok, still no sound-

it's seems I only use arts through my differents applications(KMix)

- XINE(programmed for arts)=-> these errors messages:

-"there is no available demuxer plugin to handle

-"there is no available input plugin available to handle'xine ui version
(config xine=oss as audio driver to use et /dev/mixer for oss
mixer device)

if you know a specific linux multimedia forum

welcome to any help
because I'd like to use Xine very quickly.