[Zope] <dtml-with "portal_url.getPortalObject()"> gives AttributeError

[Marc Lindahl]

I'm trying to keep around some legacy code, in zope 2.5.1 (CMF 1.3)

trying to surround a block with <dtml-with 
"portal_url.getPortalObject()"> so I reference root level folders.  I 
get the error:

Error Type: TALESError
Error Value: exceptions.AttributeError on getPortalObject

(it's a bit of dtml code in a ZPT page).  I've tried a variety of 
different evaluations, and proxy roles on the dtml method, with 
basically the same problem.

Any idea how to do a dtml-with so you're at the root of a portal (also 
I'm using VHM)?

M