So if you change the "..., tblCustomers.cuID AS UserID, ..." to "..., DISTINCT tblCustomers.cuID as UserID, ..." what syntax error do you get?

And what happens if you move that to be the first column in the select clause (e.g. "SELECT DISTINCT tblCustomers.cuID AS UserID, tblLoan.lnID AS LoanID, tblLoan.lnTypeLoan AS LoanType, ...")?