This is a bug in the translation file somewere. Can you please try to move away: /usr/share/locale-langpack/pl/LC_MESSAGES/update-manager.mo
and see if it works then? Thanks, Michael ** Changed in: update-manager (Ubuntu) Importance: Undecided => Medium Status: Unconfirmed => Needs Info -- update-manager dont start https://launchpad.net/bugs/64132 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs