to access as root to kate o k3b, etc., I remove the package called kdesudo and just reinstall the package called kdesu-kde4.
$ sudo su
$ apt-get update
$ apt-get upgrade
$ apt-get remove --purge kdesudo
$ apt-get install --reinstall kdesu-kde4
$ exit
Now, I can run KDE3.X or KDE4 applications with no problem
more information at the following link
http://www.chilewarez.org/index.php?showtopic=610061
regards
Jorge
$ sudo su
$ apt-get update
$ apt-get upgrade
$ apt-get remove --purge kdesudo
$ apt-get install --reinstall kdesu-kde4
$ exit
Now, I can run KDE3.X or KDE4 applications with no problem
more information at the following link
http://www.chilewarez.org/index.php?showtopic=610061
regards
Jorge