A child row has multiple parents

[Bob Morris]

I am using a DataSet populated by data adapters. This is for a master record
scenario in which each master record has two sets of zero to n child
records. I save (update) a record once and all is fine. I save it again and
get "A child record has multiple parents." Stepping through records show
that this is not the case.

Any ideas? Above all on how to make the DataSet function purely as a
passthrough?

Bob