Another interesting fact to note Helen, is that all the other
masterdetail relationships are set in the querybuilder, in the
datamodule (PraxData) ... AND THEY ARE ALL WORKING JUST FINE PARAMS AND
ALL!

It is only in this one module of the program, that I was setting it
using the code we have referred to.
The reason I did it here, is that PPatientQuery, actually is the master
Query in the database for many other child queries.
In this one instance, I have a table which contains a list of data
(IODQuery) which represents a subset of hte PPatientQuery, and instead
of creating a new query which is a duplicate of the PPatientQuery for
this purpose alone, I'm doing it in the code, and making it a child of
the IODQuery.

Perhaps the answer lies in this fact, or perhaps I'm confusing you even
more now.

Thanks

Adrian




[Non-text portions of this message have been removed]