You must be a member of the Domain Admins, Schema Admins, and Enterprise Admins" error when you run the Windows Small Business Server 2003 Setup

During a build of Windows 2003 SBS where I was adding replacing an existing server, I got this error:

You must be a member of the Domain Admins, Schema Admins, and Enterprise Admins"

This comes from the fact the SBS server doesn't think it's the holder of the mater roles for the domain.  This knowledgebase article talks about how to address that problem:

http://support.microsoft.com/kb/842694