Pass Through Query problem

[davidnash]

I am using a Pass Through query to execute a Store Procedure on SQL Server 2000. The Store procedure checks whether the user is a member of the Domain administrators group. Unfortunatel, it returns a null value. If I set the store Procedure to check on any other domain role it works fine, so i know the code is correct.

I realise this is more of a SQL Server problem, but there may be help available from one of you guys out there.

In addition, can anyone advice of a good forum for SQL Server?

Dave