I've been trying to track down a problem with one of my programs since upgrading from 1.61 to 1.66.  The program is a basic parent/child form. I have set the ParentBusinessObject property on my child Business object, however when the program runs, the ParentBusinessObject is being reset to Nothing.  The value is fine after  initialize component but is set to nothing by time it hits ParentFormLoading.

Any ideas?