I already found the error.
In the files there are stending direct the umlaut like ö,ä,ü and so on. But it is necessary to use the html syntax like ö, ä, ü and so on.
Regards.
I want to use umalute like ä,ü,ö in the addressbook and there fore i changed all utf-8 into iso-8859-1 but I still have problems with some items which use the umlaute.
Hope somebody can help me there.