>How can I stop my forms from cascading inside my main VFP window?
>The opening form fills the entire main VFP window, but the next form that gets called into the main VFP window appears slightly lower than the first form and the first form's title bar with caption still shows slightly above the second form. All of the form's are Modal and Maximized and Not Closable and No Max and Min Button available. TIA!

You must have code in your base class form doing that. Normal behavior is to be at 0,0 unless you have AutoCenter set. Even AutoCenter will not cascade forms.