[Zope] CVSFile - can´t update file in sandbox

hi there, i am running CVSFile 0.7 on Zope 2.5.0; when i try to update a checked out file in the sandbox with a local file (i.e. upload that file), zope keeps telling ma "... Invalid request The parameter, externalfile_content, was omitted from the request...." This only happens when uploading binary files - e.g. Images -, text files work just normal. Creating new binary files and committing them to cvs works as well... Any suggestions out there? - Thank you! - Oliver _____ To understand recursion, we first have to understand recursion.