kdesudo and kdesu

Firstly my thanks and congratulations to the Trinity project for such great work and the support for Debian. It is my desktop of choice for Debian Squeeze and looks really nice, more so than the (old) kde defaults. In fact I have run Trinity (ubuntu packsges) on Debian Squeeze since last November. It idles at around 100MB ram usage. I now have a fresh Squeeze install with Trinity from the new Trinity-Debian repos. This was done using debootstrap and chroot. Trinity-kde was installed with apt-get (in the chroot) using a text list of specific packages. I use these methods to minimise bloat. The only issue is, kdesu. I saw an earlier post on this but no resolution. Is nobody else getting this? I can't change the clock or get root from kcontrol, kuser, etc. The workaround is sudo or sux (/opt/trinity/bin needs to go in roots $PATH) in a konsole to open kde apps I do not like to use sudo by preference but in this case I have set my user in /etc/sudoers. (works as expected otherwise, e.g. <sudo kwrite> is successful) Ideally I would like to disable sudo altogether and just use su, sux and kdesu. kdesudo-trinity is installed. In my old Squeeze install I fixed kdesu by adding a text file ~/.kde3/share/config/kdesurc containing: [super-user-command] super-user-command=su No luck with that on the new install In konsole: dzz@exelinux:~$ kdesudo kwrite /usr/bin/xauth: (argv):1: couldn't query Security extension on display ":0.0" No protocol specified kwrite: cannot connect to X server :0.0 dzz@exelinux:~$ kdesu kwrite /usr/bin/xauth: (argv):1: couldn't query Security extension on display ":0.0" No protocol specified kwrite: cannot connect to X server :0.0 . Any ideas what is wrong?