Thanks for the suggestion, sorry, I've been slow to try it. 1) Removed update-manager, everything looked o.k. 2) find update-manager:
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/898295 Title: Update Manager is in Launcher and Alt-Tab list, but I can't switch to it To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/898295/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
