In Quantal "Privacy settings" cannot activate "sending error reports to Canonical" checkbox

[Carla Sella]

When I open "System settings", "Privacy" in the "Diagnostics" tab I am unable to select "Send error reports to Canonical".
I click on the unlock button, insert my password, check the "Send error reports to Canonical" box, but when I go out of the "Privacy" window and go back in the "Send error reports to Canonical" is unchecked again, there is no apply button to keep the modifications made and I cannot find a way to let the "Send error reports to Canonical" box checked.

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: gnome-control-center 1:3.4.2-0ubuntu19
ProcVersionSignature: Ubuntu 3.5.0-17.28-generic 3.5.5
Uname: Linux 3.5.0-17-generic x86_64
ApportVersion: 2.6.1-0ubuntu3
Architecture: amd64
Date: Sun Oct 14 17:31:00 2012
ExecutablePath: /usr/bin/gnome-control-center
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120301)
SourcePackage: gnome-control-center
UpgradeStatus: Upgraded to quantal on 2012-10-13 (1 days ago)
usr_lib_gnome-control-center:
 activity-log-manager-control-center 0.9.4-0ubuntu4
 deja-dup 24.0-0ubuntu1
 gnome-control-center-signon 0.0.18-0ubuntu1
 indicator-datetime 12.10.2-0ubuntu3

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.