Sound Server Failure

[Karl Pearson]

For a while now I can only hear one thing at a time. Duplexing doesn't work,
if that's what it's called.

Details:

FC6 2911.6.5 kernel
mplayer streaming live radio.
Kicking off a window which should play a chime when a dialog window comes up
and instead, I get an Informational artsmessage:

Sound server informational message:
Error while initializing the sound driver:
device: default can't be opened for playback (Device or resource busy)
The sound server will continue, using the null output device.

Where do I set arts to listen to more than one thing at a time?

Oh, I'm running the XFCE4 environment, which is pretty nice...

-- 
karl
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 _/   _/ arl _/_/_/  _/ earson    KarlP at ourldsfamily.com
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Senior Consulting Sys/DB Analyst
http://consulting.ourldsfamily.com
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