Update manager GUI is only a title bar

[Bracken]

My update manager is just a title bar, see screenshot, I can't tell if it's working or not.

Unrelated to this defect (maybe), it has always been very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very slow.

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: update-manager 1:0.194.1
ProcVersionSignature: Ubuntu 3.11.0-19.33-generic 3.11.10.5
Uname: Linux 3.11.0-19-generic x86_64
ApportVersion: 2.12.5-0ubuntu2.2
Aptdaemon:

Architecture: amd64
Date: Sat Apr 19 13:38:10 2014
GsettingsChanges:
 b'com.ubuntu.update-manager' b'first-run' b'false'
 b'com.ubuntu.update-manager' b'launch-time' b'1397910997'
 b'com.ubuntu.update-manager' b'show-details' b'true'
 b'com.ubuntu.update-manager' b'window-height' b'550'
 b'com.ubuntu.update-manager' b'window-width' b'653'
InstallationDate: Installed on 2013-06-22 (300 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
MarkForUpload: True
PackageArchitecture: all
SourcePackage: update-manager
UpgradeStatus: Upgraded to saucy on 2013-11-10 (159 days ago)