[Zope] [Q] The Book's examples are working sporadically for me

[Carl David]

I think I've got some kind of permission problem, since the examples
in the "Book" concerning <dtml-tree> and
<dtml-in expr="objectValues('Folder')"> etc., work on some folders and
not on others.
Can someone clear this up for me so that I can get consistant behavior?
Thanks.
Carl David
david@uconnvm.uconn.edu