This may be a version problem, or it may not. I wrote a fairly straightforward Zope application in Zope 2-3-1 on Linux. (That instance of Zope has been working just fine for months and hey, it wasn't broke so I didn't fix it. The Linux box has been up for 132 days and I like the fact that I only have to fuss with Zope, if anything at all.) I created a simple product and associated folder (with a slew of Folders, DTML Documents, python scripts, and DTML Methods. Then I exported them and shipped both the product and the site off to a client who had downloaded and installed Zope 2-3-4 for Windows. The client got into the Zope management screen (after a little hand-holding, but he didn't read any documentation, so I can't complain). I talked him through the processes of unzip/untar the product, and loading the particular site. Now the client can pull up a browser and accurately read index_html of the main folder. However, when he tries to read any of the DTML Documents, Folders, etc. he gets: Zope Error Error Type: NameError Error Value: global name 'namespace' is not defined Is this problem between different versions of Zope? namespace is pretty fundamental. I don't see how it could have worked fine under 2-3-1 and not under 2-4-3. Thanks in advance for any help. Ron