Suspend either logs out or reboots, not suspend

Clicking suspend from the top right menu does not suspend the computer. Coming from 10.10 this used to act in the same way as hibernate on windows.

Currently on my computer it either shuts down and starts running POST again, or it just closes everything and takes me back to the login screen.

It will never shutdown saving the state of my current desktop.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: upstart 1.5-0ubuntu3
ProcVersionSignature: Ubuntu 3.2.0-20.33-generic 3.2.12
Uname: Linux 3.2.0-20-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.0-0ubuntu4
Architecture: amd64
Date: Sun Apr 8 00:19:54 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120328)
ProcEnviron:
 LANGUAGE=en_GB:en
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SourcePackage: upstart
UpgradeStatus: No upgrade log present (probably fresh install)