Randall Kern wrote: > > This works fine for the first page, but once I try to expand an item I get: > > Error Type: AttributeError > Error Value: 'tuple' object has no attribute 'append' This, IIRC, is a bug in dtml-tree that no-one ever managed to fix. Maybe someone at DC could help? Try sticking it in the bug collector: http://classic.zope.org:8080/Collector/ cheers, Chris