[Zope-CMF] Can't export to a Zope CMF Red Hat 9 Server

[David Cain]

Built a CMF portal on a Win XP Pro/Zope 2.6.1/CMF 1.3.1 server.  I can
successfully export and import the portal to another Win XP Pro/Zope
2.6.1/CMF 1.3.1 server, but not to a Red Hat 9/Zope 2.6.1/CMF 1.3.1
server.

I can successfully import, but then I get the following error when
trying to access the portal:
    Zope has encountered an error while publishing this resource.
    Error Type: KeyError
    Error Value: expanded_title
As soon as I fix this property problem, another property is not set.

What seems to be the problem here, and why doesn't the export import
cleanly without an problems?

Thanks Dave