I am experiencing the exact same thing. Authentication dialog appears, enter password, authentication dialog reappears with no field to enter password. Closing the dialog using its window controls allows the software to proceed, authenticated.
-- Update manager's authentication request needs fixing https://bugs.launchpad.net/bugs/670535 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