Version: (using KDE KDE 3.2.2)
Installed from: Compiled From Sources
Compiler: Gcc 3.3.2
There seems to be a typo in kdesu in the kdelibs-3.2.2 source.
If kdesu does not except your root password..
1. Go into kdelibs-3.2.2/kdesu
2. Openup su.cpp and goto line 81
3. comment args+= "-";
4. make, make install
*** This bug has been marked as a duplicate of 78948 ***