"Could not find object" error message in D5

[rworrell]

I'm trying to track down an error, "Could not find object" (number 8712 on the call stack). It happens when I try to set the MasterSource and MasterFields properties of a TClientDataSet component. I have two sets of query, provider, client dataset and datasource components. Set 1 is the Master in the relationship. Set 2 is the Detail. On the Detail client dataset, I set the MasterSource and MasterFields properties to Set 1. IF I get that far, any attempt to open Set 2 results in this error. Sometimes I get the error when I try to open the editor for the MasterFields property on the Detail client dataset. I can open Set 1 (the Master) but the error occurs every time I try to open Set 2 (Detail).

I have tried reversing the order of what gets opened first; I have tried opening the datasets before running the form; I have tried combinations of when the datasets are opened.

I have run out of ideas. Any suggestions?
[sig][/sig]