From my last upgrade of system this is what obtain when I change to root:
chema@linux:~/pelis> kdesu -c "smart --gui"
kdesu (kdelibs): ERROR: su has exited while waiting for pwd.
And I can't do it.
This is my kde system:
kdegraphics3-fax-3.5.5-2
kdemultimedia3-3.5.5-2
kdegraphics3-postscript-3.5.5-2
kdepim3-networkstatus-3.5.5-2
kdeartwork3-kscreensaver-3.5.5-2
kdeaddons3-kicker-3.5.5-2
kdebindings3-javascript-3.5.5-2
kdemultimedia3-sound-3.5.5-2
kdebase3-extra-3.5.5-3
kdeartwork3-sound-3.5.5-2
kdeutils3-3.5.5-2
kdeartwork3-3.5.5-2
kdebase3-nsplugin-3.5.5-3
kdemultimedia3-mixer-3.5.5-2
kdeadmin3-3.5.5-2
kde3-i18n-es-3.5.4-70.5
kdelibs3-3.5.5-2
kdebase3-SuSE-10.2-30
kdeaddons3-kate-3.5.5-2
kdegraphics3-kamera-3.5.5-2
kdeaddons3-konqueror-3.5.5-2
kdebase3-3.5.5-3
kdegraphics3-3.5.5-2
kdegraphics3-pdf-3.5.5-2
kdelibs3-doc-3.5.5-2
kdebase3-ksysguardd-3.5.5-3
kdebase3-session-3.5.5-3
NetworkManager-kde-0.1r588481-3
kdeartwork3-xscreensaver-3.5.5-2
kdebase3-samba-3.5.5-3
kdelibs3-arts-3.5.5-2
kdemultimedia3-CD-3.5.5-2
kdebase3-kdm-3.5.5-3
kdenetwork3-3.5.5-2
kdebindings3-python-3.5.5-2

Regards