KDE 3.1: aRTsd doesn`t start, libvorbisfile.so.0 missing

[Lutz.Lennardt@t-online.de (Lutz Lennardt)]

I just installed KDE 3.1, but I don`t get sound.
 aRTsd doesn`t start, it`s complaining a missing libvorbisfile.so.0 .

Searching Debian packages, I found this file beeing in
libvorbis0_1.0rc3-1_i386.deb.

Installation of that package, however, is not possible:

(Translation from German, may me not exact)
lutz:/home/lutz/download# dpkg -i --force-overwrite
libvorbis0_1.0rc3-1_i386.deb dpkg - warning: downgrading libvorbis0 from
1.0.0-1 to 1.0rc3-1. dpkg: Looking at  libvorbis0_1.0rc3-1_i386.deb
containing libvorbis0 libvorbisenc2 colliding with libvorbis0 (<< 1.0.0)
  libvorbis0 (Version 1.0rc3-1) to be installed.
dpkg: Error processing libvorbis0_1.0rc3-1_i386.deb (--install):
 colliding packages - not installing libvorbis0 
Errors processing  libvorbis0_1.0rc3-1_i386.deb

Any ideas?

Lutz