I also had this problem, using xfce 4.6 with compiz as my window manager. I disabled the "Session Management" compiz plugin, and the problem stopped come back after this.
-- Multiple instances of xfdesktop started simultaneously https://bugs.launchpad.net/bugs/329616 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