i encountered the same problem in ubuntu 10.04.4 maybe the following image can help you. in the logout applet of cairo-dock ,only the option 'log out' and the option 'lock screen' is enabled, all other options are disabled. but after a relogin, everything is enabled.
** Attachment added: "screenshot of the logout applet of cairo dock" https://bugs.launchpad.net/ubuntu/+source/gnome-session/+bug/838792/+attachment/3069341/+files/%E8%8F%9C%E5%8D%95_019.png -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-session in Ubuntu. https://bugs.launchpad.net/bugs/838792 Title: "Restart" logs out, even when there are no other people logged in To manage notifications about this bug go to: https://bugs.launchpad.net/indicator-session/+bug/838792/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs