Having the same problem here. Feisty 64 Dist-upgraded 16/1 11.10pm EST Australia.
Looking forward to seeing this fixed as Updater has been broken for a week or more now. ** Attachment added: "Crash Log of Updater" http://librarian.launchpad.net/5767778/_usr_bin_update-manager.1000.crash -- update-manager crashed in feisty https://launchpad.net/bugs/79274 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs