Can't start KWRITE under root

I’m trying to start kwrite under root:


mlp:/home/irl # kwrite /etc/conky/conky.conf
kwrite(5971)/kdeui (kdelibs): Session bus not found 
To circumvent this problem try the following command (with Linux and bash) 
export $(dbus-launch) 
KCrash: Application 'kwrite' crashing...
KCrash: Attempting to start /usr/lib64/kde4/libexec/drkonqi from kdeinit
sock_file=/root/.kde4/socket-mlp.hm/kdeinit4__0
Warning: connect() failed: : No such file or directory
KCrash: Attempting to start /usr/lib64/kde4/libexec/drkonqi directly
drkonqi(5972)/kdeui (kdelibs): Session bus not found 
To circumvent this problem try the following command (with Linux and bash) 
export $(dbus-launch)

???

Use

su -

instead of

su

or use

kdesu kwrite

From the main menu use Execute Command and enter: kdesu kwrite …

See also: SDB:Login as root - openSUSE

Thank you a lot!