[Zope] Virtual Host Monster does not work with the absolute_url()

I am finding that the Virtual Host Monster does not work with the absolute_url() method of several objects. It seems to work fine for all other things, but when I try to call the URL of an object like this..... <dtml-in "thismodel.getReports()"> <A HREF="<dtml-var "_['sequence-item'].absolute_url()">?assessmentid=<dtml-var thisassessment>" TARGET="_newer"><dtml-var "getTitleOrId()"></A> </dtml-in> It always returns the path back to the real root of Zope. It completely ignores that there is a Virtual Host Monster. I am certain that my Apache rewrites are ok, Ive been using it for many months with no problem. It is just the absolute_url() method that does not work. Any hints? Tom