[Zope] PropertyFolder and PropertyObject in Zope 2.5.1

Hi all, I just developed an application on a Zope 2.6 machine with PropertyObject and PropertyFolders - and exported it to 2.5.1 machine. I noticed that strangely enough on 2.5.1 PropertyObject's behaviour changed. If I had in object object_type and a page template of same name, Zope did not call the pagetemplate to show the object - which was the behaviour in Zope 2.6. Tested on both windows and linux 2.6 - and on Linux 2.5.1. Versions of PropertyObject / Folder are 1.2.1 Does anyone have an idea on what is causing this? -huima