For some reason the problem has gone away. I suspect that this may have had something to do with me installing some package necessary for samba to work, although I can't remember exactly what I did. What I mean is that I think the problem may have something to do with shares-admin not being able to grasp that samba hasn't been installed properly.
-- shares-admin crashes on launch https://launchpad.net/bugs/60851 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
