No sound from Flash, but other methods work well

[Ron Johnson <ron.l.johnson@cox.net>]

Hi,

My Google-fu must not be up to snuff, because I've Googled much 
without any luck.

USB Audio
32-bit Sid
ALSA 1.0.23+dfsg-1
Flash 10.1r53 (from adobe.com)
Iceweasel 3.6.4-1 (experimental)
vlc 1.1.0
users are in group audio

Sound plays fine from local sources but not from Flash/Iceweasel. 
(Yes, Flash *video* works.)

Any thoughts on how to solve this would be much appreciated, since 
otherwise my wife will insist on moving back to Windows.

Thanks
--
Seek truth from facts.