Failed validation, 0 error - Part II

Hello,

when validating a XML file with the W3C Markup Validation Service I  
receive the Answer "Failed validation, 0 error" (13. Sept 2006, 19:42  
GMT+1). There used to be a topic on this before, but the problem seems to  
lie somewhere else this time.

The DTD is correclty found, the source ans parse tree is shown on demand.  
So what can the problem be?
The URL (demo data) is: http://ofbeta.msd-media.de/layout/project.xml -  
and the Service says: "This page is not Valid  
http://ofbeta.msd-media.de/layout/oFb.structure.dtd". But why???


Sincerely,

Dominik Leiner
oFb-Team

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oFb - der onlineFragebogen
http://ofb.msd-media.de