GP AA error: creating a Transaction Dimension

Help please!!!

This error message is driving me nuts and there is nothing on Customersource to point me in the right direction to fix it. When attempting to create a new Transaction Dimension for AA I keep getting the following error messages:

Violation of PRIMARY KEY constraint PKAAG00600. Cannot insert duplicate key in object dbo.AAG00660 and The stored procedure aagCreateTree returned the following results: DBMS 2627, Microsoft Dynamics GP.

I'm willing to wipe out my records of AA and start again