I get the following error whenver I try to save a record in the DDT. any Ideas? 

Yes, we currently don't have the ability to store the RowGuid option for a field, and for some reason the primary key index is not being set as primary when the table is imported, so I'll have to look into both of those.  It might be a couple days before I can get you a fix, though.

Ben,

I am in no hurry for it I still do all my changes etc on SQL and as it is a replicated DB structure changes are handled there. I Just wanted to make sure you knew what was causing the issue.

Paul