machine wont shut down without being forced to

[Laura Czajkowski]

On latest updates on 12.10 when you hit power down from the menu it brings you back to the login screen :/

The only way to currently shut down the machine is to hold the power button down

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: lightdm 1.3.3-0ubuntu4
ProcVersionSignature: Ubuntu 3.5.0-15.22-generic 3.5.4
Uname: Linux 3.5.0-15-generic x86_64
ApportVersion: 2.5.2-0ubuntu4
Architecture: amd64
Date: Fri Sep 21 08:04:02 2012
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
SourcePackage: lightdm
UpgradeStatus: Upgraded to quantal on 2012-09-08 (12 days ago)

[Laura Czajkowski (czajkowski)]

Lightdm log - http://pastebin.ubuntu.com/1218251/ as per laney request

[Laura Czajkowski (czajkowski)]

http://pastebin.ubuntu.com/1218270/ - X-1.log

http://pastebin.ubuntu.com/1218279/ - x-0-greeter.log

http://pastebin.ubuntu.com/1218277/ - x-0.log