I had the same problem and found the solution here: Question #32469. Worked immediately.
-- The button "Maximize" and "Minimize"has totaly dissapeard. https://bugs.launchpad.net/bugs/273301 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
