Printing does not work after preupgrade to F16

[Benjamin]

Hi Memebers!

I encountered the following problem. I hope that someone can help me.
Yesterday i made the preupgarde from F15 to F16, which worked quite 
good, but it installed Gnome Desktop, which was not in my sense. So i did
yum groupremove Gnome Desktop enviroment
this removed all the packages from gnome.
After this i did:
yum groupinstall KDE
Which installed KDE.

Now: If i lof in as root or as a user, i cannot print. I see the 
printers (except in thunderbird and firefox), but when i press "print" 
nothing happens.
So i thought of looking into the printer configurations, but when i try 
to open the printer configs gui the following error is said:

Printerconfigurations has no interface "KCModule" with the key 
"system-config-printer-kde/system-config-printer-kde.py" The factory 
does not support the creation of components of the mentioned type.

(translated from German to English by me).

Note: The last time i did change my desktop from Gnome to KDE with the 
above mentioned method, printing worked perfectely. So i think, that 
there might have happened system with the preupgrade.

Thx. for help, Benjamin.

PRinter: HP Officejet 6500


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