Description of problem:
I have 2 sound devices: Logitech USB headset and an onboard nVidia Corporation
CK804 AC'97 Audio Controller (rev a2) sound-card . Upon first boot, the Nvidia
sound card is detected fine and the sound test works (i can hear the sound
sample in my speakers). If i do not touch the default device in the Volume
control application, everything is fine upon subsequent reboots. However, if I
change the default device to the USB headset, then reboot, the Nvidia card
disappears from the list of installed sound cards. Deleting the
/etc/asound.state file, running alsactl and alsamixer commands few times (not
changing anything) and rebooting, it brings the soundcard back again. I never
found a pattern though, and I cannot see what I could have done to bring it back
, and I am unable to reproduce it consistently. 
What I am able to reproduce all the time is that if the USB device is selected
as the default device, the Nvidia soundcard disappears from the list fo
installed devices.


Version-Release number of selected component (if applicable):
Fedora 7 test3 (the same behavior appears in Fedora Core 6)

How reproducible:
Always. 

Steps to Reproduce:
1. Set the USB audio device as the default audio device in Volume Control
application
2. Reboot
3.
  
Actual results:
Nvidia soundcard disappears from the list of installed sound devices

Expected results:
To be there.

Additional info: