Setting System>Appearance>visual effects to "none" solved the problem. Sorry to report it as a bug...but thanks for your efforts.
-- Evolution title bar toggle on/off https://bugs.launchpad.net/bugs/383010 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
