[ActiveDir] Duplicate user in Active Directory

["Sanz de Le�n, Juan Carlos"]

Title: Message

Dear Gurus,       We have a forest with 4 domains.  I deleted a user in domain A.  Then I created that same user in domain B.  ...... and for some strange reason.. we now have the user duplicated in our Global Catalog....  When I search the Global Catalog in domain A, I only see one user.  When I search the GC of all other domains.. the user is duplicated.    Exchange 2000 does not like duplicates....   How should I go about solving this problem?       Thanks in advance, Juan Carlos Sanz