[Zope] WebDav with Dreamweaver- cannot checkin edited file

Hi, I am using Dreamweaver 4 and Zope 2.5.1 and have given a particular file WebDav permission of lock, unlock, and access to anonymous and I can check out the file but cannot check it back in. I get the error that "cannot put myfile.html" What could be happening here? BTW this is a file created in CMF 1.2 which was upgraded to 1.3 Sean Kelley Technology Coordinator City of Santa Rosa Phone: (707) 543-3353 Pager: (707) 581-3061