Comment 3 for bug 180956

There is a related thread on ubuntuforums.org
http://ubuntuforums.org/showthread.php?t=730142

Apparently, the temporary solution to get sound and wireless working is to install 2.6.24-12-generic. I've tried the fix:
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sudo apt-get install linux-ubuntu-modules-$(uname -r)
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But all I get is:
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Reading package lists... Done
Building dependency tree
Reading state information... Done
Package linux-ubuntu-modules-2.6.24-12-generic is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package linux-ubuntu-modules-2.6.24-12-generic has no installation candidate
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What's the next step? The "uname -r" command returns "2.6.24-12-generic" so I don't know where to go from here.