I also marked all upgrades. It broke Nvidia. I also lost the control panel. However, these are different bugs. This bug is fixed by updating python-apt only. Anything else is a new issue. As someone said to me, "You should expect problems on the bleeding edge."
-- [apport] apt-check crashed with ImportError in <module>() https://launchpad.net/bugs/88104 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
