Dear Sebastien, Installing via Software Center works, yes.
** Changed in: gnome-control-center (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-control-center in Ubuntu. https://bugs.launchpad.net/bugs/1050437 Title: Can't unlock User Accounts Status in “gnome-control-center” package in Ubuntu: Confirmed Bug description: Even though my user is in the sudo group, that user can't modify system users using the control center. The Unlock button in User Accounts is unavailable and pointing at it pops up a tooltip saying "System policy prevents changes. Contact your system administrator". I've tried two users that are in the 'sudo' group and they both have the same issue. This is both through an LTSP client session and through 'ssh -X <server> gnome-control-center'. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: gnome-control-center 1:3.4.2-0ubuntu0.4 ProcVersionSignature: Ubuntu 3.2.0-30.48-generic 3.2.27 Uname: Linux 3.2.0-30-generic x86_64 ApportVersion: 2.0.1-0ubuntu13 Architecture: amd64 Date: Thu Sep 13 16:41:19 2012 EcryptfsInUse: Yes InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425) SourcePackage: gnome-control-center UpgradeStatus: No upgrade log present (probably fresh install) usr_lib_gnome-control-center: activity-log-manager-control-center 0.9.4-0ubuntu3 deja-dup 22.0-0ubuntu2 gnome-bluetooth 3.2.2-0ubuntu5 indicator-datetime 0.3.94-0ubuntu2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1050437/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp