To add some more information to this problem:
*) It occurs with a newly created user too, so it shouldn't be some old settings
*) When I start a different desktop environment (LXDE in this case) and open some KDE-applications (e.g. kmail), then kded and kdeinit start without any problem.
To add some more information to this problem:
*) It occurs with a newly created user too, so it shouldn't be some old settings
*) When I start a different desktop environment (LXDE in this case) and open some KDE-applications (e.g. kmail), then kded and kdeinit start without any problem.