[Zope] Problems with Zope 2.2.2 and MS SQL Server

Hello all, I'm having some troubles connecting Zope 2.2.2 to Microsoft SQL Server. I downloaded and installed the product ZODBCDA, and I was able to connect to the SQL Server. I was able to define the SQL methods, and when I test them, everything is successful. The problem is that when I use for example the dtml-in tag to iterate over the results, and display them in a page, I am always prompted for a password, but I can enter whatever password I want, I can never get through. Does anybody has an idea of what I'm doing wrong and how I can solve it?? Thanks, Pieter