[Zope] Strange behaviour - 3 links which should be the same don't

Hi, Following 3 URLs should return the same content but they don't, why? Link 1 (works) http://reports.eea.eu.int/briefing_2005_3/da Link 2 & 3 (content borked) http://reports.eea.eu.int/briefing_2005_3/da/ http://reports.eea.eu.int/briefing_2005_3/da/index_html Enviroment: Zope 2.7.3 upgraded from 2.6.4 The objects in the url are from ZClasses and index_html is a DTML Method. If I do abstract.decode() the links would work, but since this is a very OLD site and one of the links works I would like to know why before I start changing couple years old templates. Title and Abstract text are UTF8 encoded in a textfield. ZMI form is UTF8 encoded and looks good when you edit it.