Updates broke sound

[Ken T.]

Some update I installed over the last few days has broken sound on my 
Dell 1525 running Intrepid.  I added the backports repository yesterday 
so it could be one of the handful of updates I installed there.  

There wasn't any problem until I rebooted and now I don't have any 
sound.  

Any ideas or suggestions would be greatly appreciated.  

Thank you,

-- 
Ken T. <ktectropy at gmail.com>