update killed my sound AGAIN!!!

[Bill Walton]

Sorry for the shouting but this has been a PITA for a long time.  In
the past I've always been able to restore sound (I lose it after
_every_ update) by following the help documentation
(https://help.ubuntu.com/community/SoundTroubleshootingProcedure).
This time I am unable to get sound back.  I'm running 10.04 on an HP
G72 laptop.  No dual boot.  Just 10.04 LTS.

The most telling, so far, response I get from the system is from the
output of the first step:
<snip>
linux-image-2.6.32-40-generic is already the newest version.
E: Couldn't find package linux-alsa-driver-modules-2.6.32-40-generic
<snip>

Any ideas?  I'm happy to post more info if it will help, but this
seems to be the nut.

Thanks,
Bill