After upgrading to the beta9c developer image, I find I can no longer get any audio output from my own programs. (The player runs fine, but when I exit and run something else, there is no sound.)

I've verified the mute status with this program, and I have also played around with making sure /dev/mixer's main volume channel is set to a reasonable level, but still I cannot get any sound from programs that used to work.

Any ideas?
-v