Comment 2 for bug 489531

This bug was fixed in the package paprefs - 0.9.9-2ubuntu1

---------------
paprefs (0.9.9-2ubuntu1) lucid; urgency=low

  * Sync on Debian unstable.
    + Patches in 0.9.9-2 fix pulseaudio module path skew (LP: #489506)
  * debian/patches/0004-Show-install-only-with-active-packagekit.patch
    + Show the install buttons only when PackageKit is running. Otherwise
      these buttons silently fail (LP: #489531). A functionally-equivalent
      patch is in upstream git; this can be dropped in the next upstream
      version.
 -- Christopher James Halse Rogers <email address hidden> Mon, 30 Nov 2009 11:21:19 +1100