Hello Sergey,

So this means that a child form must remain inside the boundary of the top-level form? And of course if that happens (ie child window set to WindowType 'Modal' and ShowWindow '1 - In top-level form') then I get the top level form disbaled.

This is not what I want to happen. Why does the child window have to live within the bounds of the calling window?

This also seems strange when the MESSAGEBOX() window lives on top of all the windows and disables all the calling ones.

Regards...Rex