Please describe the problem:
If i remove the external USB soundcard, which is the second next to the built-in soundcard, one of the two mixer_applet2 applets/processes uses 100% cpu continuously.

Steps to reproduce:
1. Connect a second (in my case Creative) sound card via USB. The other one is built-in.
2. Load 2 mixer applets
3. Configure applet 1 to control pcm from the built in card
4. Configure applet 2 to control pcm from the external card
5. (not sure if this is needed) Make the external card the default card via sudo asoundconf set-default-card External
6. Unplug the external soundcard.
7. wait a few seconds and then it happens.


Actual results:
You can see a process 'mixer_applet2' using 100% cpu time.

Expected results:
I would have expected that the applet takes over the interal soundcard, or displays an error message.

Does this happen every time?
Yes

Other information:
The secondary soundcard is connected via an USB hub. But i don't think this has anything to do with it.