With a Constituent record open and selecting Constituent > Duplicate Search, if a dupe is found you are given a "View" button to open and reveiw the potential duplicate. But what opens is a very abbreviated Constituent window. Not all the tabs are there! Of particular note, Relationships, Gifts, and Attributes do not appear. Information on these tabs is important to determining if the record is, in fact, a dupe (and I don't understand why it wouldn't just open the entire "standard" window anyway).