Comment 10 for bug 15164

Steps to reproduce:
  * Do a clean install.
  * Start up as your "normal" user.
  * Note that "devhelp is not available under Applications->Programming
  * Launch gnome-install-app
  * Install devhelp
  * Note that Applications->Programming->Devhelp now exists, but that the icon
is not available
Further info:
  * Right click on Applications->Programming->Devhelp
  * Choose "Add this launcher to panel"
  * You'll get an error "Failed to load image devhelp.png" "Details: Icon not found"
  * Right click on the new launcher
  * Pick properties
  * Note that the icon appears correctly here, but not on the panel
  * Click on the icon and choose devhelp-debian.xpm
  * Click "Close"
  * You'll get the same error as above, but for devhelp-debian.xpm
  * Change the icon to anything else, and it works okay.

Additional Notes:
  You may not have to do a clean install. I *think* that you should be able to
un-install devhelp and then logout and log back in. But I have not tested this,
so I cannot be sure. Possibly a reboot might be needed, depending on where the
stuff is being cached. (I just don't know) Possible the minimal is just
restarting gnome-panel.