I manage an AD domain with an empty root and multiple child domains. The domains are all Windows 2003. When I go to a group in domain A and try to add a group or user from domain B, the "Object Types" field changes to "Contacts or Other objects" after I change the location to Domain B. I don't have the option to select any groups or users from that location. I have set up a two-way trust between domain A and domain B but this does not seem to make any difference. What am I doing wrong?