>Hi Bruce,
>
>Thanks for the additional information which is very useful. I still cannot pinpoint the problem but tonight I was able to work out which scenario would cause the problem. I am still investigating.
>
>I also noticed that the offending (top level) form leaves a trail when it is moved around. Did you find that when you app had the similar problem. By this I mean that the form leaves a mirror trail of itself as it is moved around the desktop. Weird!

It might've, though I don't recall for sure.

I might add to what I said before, though, that I've never had 7 stacked modals, the most has been 4 for me, AFAIK.

You might want to make a fairly quick test (if you haven't yet), by duplicating your situation, except with no controls at all on any forms (except a modal-launch button). Just create a modeless with 7 new stacked modals, to be sure it's not a stacking limit of some sort, something like that. Before you try digging through controls and such...