What version of VPM do you use?
I use 9.1.12a (should be the latest) and do not have a REQUERY in VPMDataHandler.OpenView().

I am using the same version and I'm sorry for misleading you - I meant RequeryView() not OpenView(). The thing that tickled me when I was stepping through the RI code was the method called ReferentialIntegrity_Start. It has over 1600 lines of code in it - I would say that this is more than just a start <g>.