Cannot Open /dev/dsp device

[Aaron Maxwell <amaxwell@phy.ucsf.edu>]

Hi.  xanim complains that it cannot open the /dev/dsp
device.  Funny thing is, I'm in the audio group and the
device's permissions seem legit:

yomama[8]% groups
amaxwell audio
yomama[9]% ls -l /dev/dsp
crw-rw----    1 root     audio     14,   3 Jun 28  2000 /dev/dsp
yomama[10]% ls -l `which xanim`
-rwxr-xr-x    1 root     root       604060 Aug 13 20:13 /usr/X11R6/bin/xanim*
yomama[11]% xanim delay-ss1.au                
XAnim Rev 2.80.0 by Mark Podlipec Copyright (C)
1991-1999. All Rights Reserved
Can't Open /dev/dsp device
^C
yomama[12]% 

TIA.
Aaron