[Zope] Bug ?

Hi there, I think I found a bug in 1.11pre and I just let you know about it, because it can possibly be also in Zope2.0 The bug can be found in the tree tag. At ZDP, we've made a tree by which every branch refers to an url document. Now, I installed Zope1.11pre (for testing) at my home on a Windows95, with ZServer. I've exported a part of the tree of ZDP and imported into Zope on my old PC with Windows95. If I click on an url on my PC, I get an error message : Zope Error : Zope has encountered an error while publishing this resource. AttributeError : Sorry, a Zope error occurred. This doesn't happen on ZDP. I think this is a bug. But I don't know if it is because of Zope1.11pre, or windows OS. Tom.