>It left me a message where the error occurred. It was in a loop that releases
>forms. One form has pageframes that get added with addobject() and released
>with removeobject(). I think the problem started occurring when I added this
>feature. For safety, I'm setting the object reference to null just after
>issuing removeobject. Do you have any other suggestions?

Nope, that's the sort of thing I'd suggest. Is it working?