LOCAL loi FOR EACH loi IN thisform.StepResults loi = .NULL. NEXTInstead I needed to do this:
thisform.StepResults = .NULL.Maybe it's obvious to others, but to me--being literally minded--I was thinking that, well, the property stepresults is an array. It's the elements that are object reference, and therefore it's the *elements* I need to set to .NULL. But I was incorrect in my assumption. So, just in case someone else is making this assumption, it could be a subtle cause for a form not releasing.