Same problem here... The bug to keep an eye on in the Xfce bugtracker is probably this (the initial report doesn't sound alike to this, but see comment #2):
http://bugzilla.xfce.org/show_bug.cgi?id=1109 -- Quit-button in desktop menu in Xfce does not always work https://bugs.launchpad.net/bugs/65720 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
