elementary OS will not turn off

[Alessandro]

elementary OS will not turn off

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: elementary-desktop 1.321+363~ubuntu14.04.1 [origin: unknown]
ProcVersionSignature: Ubuntu 3.13.0-5.20-generic 3.13.0
Uname: Linux 3.13.0-5-generic x86_64
ApportVersion: 2.13.1-0ubuntu2
Architecture: amd64
CrashDB: elementary_meta
CurrentDesktop: Pantheon
Date: Fri Mar 14 02:38:41 2014
InstallationDate: Installed on 2014-03-13 (1 days ago)
InstallationMedia: elementary OS 0.3 "Isis" - Daily amd64 (20140126)
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=it_IT.UTF-8
 SHELL=/bin/bash
SourcePackage: elementary-meta
SuspiciousXErrors:

ThirdParty: True
UpgradeStatus: No upgrade log present (probably fresh install)