David Frankenbach uploaded a utility called "ObjRef-finds dangling object references" that may help. Please let me know if you can't find the file.

>Back to the original Q. Is there a way to make sure the Obj is "really" destroyed? I check with a poll to the THISFORM.Obj.Name. WHen it fails, I assume it's gone, but recently I tried the code chiunk again on a Valid, but it didn't work this time. Looks like the polling didn;t meet up to my expectations.
>

Generally, if you create an object and assign it to a property (say, a form property) then when you destroy the form you must set the property to .NULL.