[Zope-dev] Problems with PageTemplates on Zope 2.8

Hi, I have an application called the Issue Dealer which I'm porting to Zope 2.8. However, whenever I try to access a PageTemplate which makes use of a page template macro it just hangs and consumes all available CPU. Any ideas what could be wrong here, or how I could debug it? Thanks, Morten PS: CC me as I'm not on the list