This bug affects me as well on a fresh install of Raring, fully up to date as of today. At first it seemed to work fine but shortly after I began using the system it began exhibiting this behavior. It seems to do it all the time for me now. I'm unsure of what information I can provide, if any, to help.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-session in Ubuntu. https://bugs.launchpad.net/bugs/1170783 Title: Opening shutdown dialog immediately triggers reboot Status in “gnome-session” package in Ubuntu: Confirmed Bug description: gnome-session package version: 3.8.0-0ubuntu1~raring1 Since switching to Ubuntu 13.04, clicking on "Shutdown ..." from the menu makes the shutdown dialog pop up for a second and automatically triggers a system reboot. This behavior can be seen in about four out of five times. The same problem occurs when the power button of the PC is pressed. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-session/+bug/1170783/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp