> OK.. it's the 'in' tag that's causing the problem. Why not try: > > <dtml-var "experession that's causing problem with in" html_quote> > > and see what 'in' is choking on... It's choking on a list of instances. This is what is returned when I "var" the expression: [<Module instance at 8b97660>, <Module instance at 88f04b0>, <Module instance at 8994730>, <Module instance at 8b46a08>]