[Zope] Problems with adding a DTML-document

Hello I have installed Zope 1.10.2 ; Python 1.5.1 and use it with apache on a debian-linux system. I managed to compile it, make it work with apache, but I fail to add a DTML-document. That means I have the main manage-screen, I can add folders but no documents, methods or images. I also can change existing documents, but I can not add a document. After a long time of loading (4-5 min) the server says: "document contains no data" The same error appeared as I tried it with Zope (as downloaded bynary)and Zap as Webserver. So I think, it is not an error in the compilation but something missing in my system. Perhaps a variable which must be set??? Where could be the missing link? Thank you for any help Stefan Thull