gnome top panel completly empty, cannot add anything

[cytofu]

I have just updated ubuntu from raring ringtale to saucy salamander. I'm using the classic desktop since many versions and it always survived the upgrade.

But now my top panel is empty. It is there and expands, but there is nothing in it. Aplications, Places.. my launchers and the login/out, wireless.. area are all gone. For some reason it has a white line on the bottom, but otherwise it is completly empty.

if I Alt + rightclick it and select "add to Panel" and add things, nothing changes, the Panel remains deserted.

My Bottom Panel is just like before.

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: ubuntu-release-upgrader-core 1:0.205.2
ProcVersionSignature: Ubuntu 3.11.0-15.23-generic 3.11.10
Uname: Linux 3.11.0-15-generic x86_64
ApportVersion: 2.12.5-0ubuntu2.2
Architecture: amd64
CrashDB: ubuntu
Date: Sun Jan 5 00:37:45 2014
InstallationDate: Installed on 2012-03-06 (669 days ago)
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
MarkForUpload: True
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
Symptom: release-upgrade
UpgradeStatus: Upgraded to saucy on 2014-01-04 (0 days ago)
VarLogDistupgradeTermlog: