flashing desktop under kde303

On a basis SuSE 7.3 installation I upgraded KDE to the 303 version compiling 
kdelibs and kdebase. Almost everything went going OK, with the exception of 
the surface of the desktop itself: it starts flashing with a frequency of 
nearly 2 flashes per second, and no icons at all shows up.The flashing stops 
after nearly one minute automatically and the gray background of the X server 
stays in place.   There is no posibility to make changes on the desktop 
background  through the control center menu. The panel is OK, all programs 
are accessible through the "K" icon in the panel. Working with the shell is 
also OK.
Can somebody tell me, where I could start making changes ? 
Hints are highly appreciated, thanks,
Edgar
-- 
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Dr.-Ing. Edgar Alwers
Mailto: edgaralwers@xxxxxx
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