Hi Peter,
These articles may be helpful to you:
HOW TO: Force Deletion of DFS Configuration Information
http://support.microsoft.com/kb/224384/en-us
Error message when you try to access a DFS root on a Windows Server
2003-based member server: "The specified DFS root does not exist"
http://support.microsoft.com/kb/940840/en-us
"Peter Rennie" wrote:
> Deleted a DFS namespace and trying to add a new one. Error is:
>
> The namespace server \\servername\namespacename\ cannot be added. The server
> already hosts a namespace. You can host multiple namesapces only on Windows
> Server 2003, Enterprise Edition or Windows Server 2003, Datacenter Edition.
>
> Any ideas please?