On Tue, 2 Jun 2009 08:22:40 -0700, "Jeff Boyce" <nonsense@nonsense.com Doug Thanks for the further description. Have you laid out the entities and relationships using paper/pencil? That seems to work well for me as a starting point. The first paragraph below may contain all that, but doesn't present it in a way that readily leads to an ER diagram. Another idea, rather than an unbound control, might be to leave it as a bound control, but allow the user to "fix" it, if necessary. Th...