Bob,
Thanks for the input. This might prove useful for the last few clients. Eblyn's suggestion allowed me to get a large chunk of the clients into DP.
It looks like the stragglers are mostly in the DMZ now with one or 2 exceptions, such as a rogue 2000 server which I think we're about to decommision anyway.
I'll let you know if your suggestion resolves any of these stragglers but thanks again.
Mondo.