gksu-properties grabbing not saved

If i try to change the grabbing settings with gksu-properties it is not being saved.
When i start gksu-properties again the setting for the grabbing is again blank.
If i use gconf-editor instead it works.

I tested this on 3 machines running Ubuntu Karmic and 1 machine running Ubuntu Lucid Lynx.

ProblemType: Bug
Architecture: amd64
Date: Thu Apr 15 21:24:43 2010
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/bin/gksu-properties
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
NonfreeKernelModules: nvidia
Package: libgksu2-0 2.0.12-1ubuntu4
ProcEnviron:
 SHELL=/bin/bash
 LANG=de_DE.UTF-8
ProcVersionSignature: Ubuntu 2.6.31-21.59-generic
SourcePackage: libgksu
Uname: Linux 2.6.31-21-generic x86_64