| I know this thread is old, but just incase somebody comes back by here with a similer question.
If your runing the Live CD session of Knoppix, root has no password. so when you click GUI Administrator buttons, such as the ones in KDE control center, they won't work.
Ether, find another way via command line to do the job, using SU. Or there is a menu listing for adding/changing root password. Frist use this each session, then your administrator buttons will ask for said password and pass you on into the service. |