Can you please give me the output of apt-cache policy liboobs-1-2. after you add that here can you please try "sudo apt-get -f install" and attach the output to this bug please.
-- feisty update-manager error calculating upgrade https://launchpad.net/bugs/80830 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
