[Zope] A Method To My Madness?

Hi; I'm trying to implement a textbook example using a DTML Method with a <dtml-in> tag: <ul> <dtml-in expr="objectValues('DTML Document')"> <li><a href="&dtml-absolute_url;"><dtml-var title_or_id></a></li><br> </dtml-in> </ul> Pretty straight-forward stuff, but strangely it works within DTML Methods but *not* within DTML Documents. Other DTML Methods work just fine. What am I doing wrong? TIA, BenO