Yup, it was missing, and installing it immediately fixed the problem and dramatically solved the situation. Now I have all my former gnome launchers listed.
Looks as if the upgrade 10.10 -> 11.04 would not install all libs needed for unity. the datetime indicator was also missing and needed to be installed manually. Problem of update-manager or dependencies. Thanks -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/778321 Title: Unity launcher configuration lost at logout -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs