Ah, I think I might see where the problem is... Can you try, from a command line, running "gksudo synaptic" (rather than "sudo synaptic"). Gksudo is the GNOME dialog to give you sudo access--if something is wrong with that, then that will block any program that attempts to bring up that password dialog--producing exactly the results you see.
-- Update 2.6.24.18.20 fails https://bugs.launchpad.net/bugs/237662 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs