Cannot add Software Updater to System Submenu in XUbuntu 11.10

[Maarten Jacobs]

Today I upgraded from XUbuntu 12.04 to XUbuntu 12.10 on two machines. After upgrading the second machine, I noticed that the "Update Manager" (Software Updater) launcher no longer shows in the "System" sub-menu from the xfce menu.

I tried enabling "Software Updater" through "Settings Manager"->"Main Menu". The "Software Updater" option is shown as disabled (no checkmark - see attached screenshot).

When I select the checkbox it will be checked, and remain checked for ~ 2 seconds, after which it becomes unchecked again.

I noticed that making the selection causes some changes to files that exist in ~/.config/menus/ and ~/.local/share/applications.

However, when I first selected the option for "Software Updater", the file "applications.menu was created in ~/.config/menus (it did not exist before), so I am thinking there is some sort of inconsistency between the location of the actual configuration files that drive the menu layout, and where alacarte seems to think the configuration files reside.

Anyways - if anybody has any idea how to fix this I'd appreciate it. I'd like to be able to enable menu options, and to be able to run "Software Updater" from the menu.

P.S.: I also tried enabling "Software Sources" on the same submenu - with the same result, so the problem is not specific to "Software Updater", I believe.

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: alacarte 3.5.5-0ubuntu1
ProcVersionSignature: Ubuntu 3.5.0-18.29-generic 3.5.7
Uname: Linux 3.5.0-18-generic i686
ApportVersion: 2.6.1-0ubuntu6
Architecture: i386
Date: Wed Nov 21 17:26:12 2012
ExecutablePath: /usr/bin/alacarte
InstallationDate: Installed on 2011-12-22 (335 days ago)
InstallationMedia: Xubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
InterpreterPath: /usr/bin/python2.7
MarkForUpload: True
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_US:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: alacarte
UpgradeStatus: Upgraded to quantal on 2012-11-20 (1 days ago)