Audacity sound problems

[Brian P.D. Smyth]

I can play sound files in XMMS, noatun mplayer, etc. but Audacity 1.0.1 
won't let me select /dev/dsp as the playback device. The preference 
dialog gives me an error message "Invalid playback device".

I have seen threads on this problem in the list archives of several 
sites but no one seems to have an answer.

Does anyone know how to fix this problem?

uname -a
Linux maskull 2.4.20-xfs #1 SMP Mit M?r 26 15:37:36 CET 2003 i686 GNU/Linux
cat /etc/debian_version
testing/unstable
Here's some of my sound setup info:

cat /proc/pci
 Bus  0, device   7, function  5:
    Multimedia audio controller: VIA Technologies, Inc. VT82C686 AC97 
Audio Controller (rev 32).
      IRQ 9.
      I/O at 0xac00 [0xacff].
      I/O at 0xb000 [0xb003].
      I/O at 0xb400 [0xb403].

lsmod
via82cxxx_audio        18620   1
ac97_codec              9992   0 [via82cxxx_audio]
uart401                 5988   0 [via82cxxx_audio]
sound                  54540   0 [via82cxxx_audio uart401]
soundcore               3364   5 [via82cxxx_audio sound]
ls -l /dev/dsp/
crw-rw-rw-    1 root     audio     14,   3 Apr 14  2001 /dev/dsp
Playing a file in with Mplayer:

xterm -e mplayer -ao oss:/dev/dsp -loop 0 Big-Eyed_Rabbit-Sutphin.wav

Playing /home/brian/Documents/Music/Big-Eyed_Rabbit-Sutphin.wav
Detected audio file!
==========================================================================
Opening audio decoder: [pcm] Uncompressed PCM audio decoder
AUDIO: 7418 Hz, 1 ch, 8 bit (0x8), ratio: 7418->7418 (59.3 kbit)
Selected audio codec: [pcm] afm:pcm (Uncompressed PCM)
==========================================================================
AO: [oss] 7418Hz 1ch Unsigned 8-bit
Building audio filter chain for 7418Hz/1ch/8bit -> 48000Hz/2ch/8bit...
Video: no video!!!
Start playing...
Thanks,
Brian
-----------------------------
Registered Linux User #211112
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