Glenn,
AFAIK, the only setting that affects modality is the ShowWindow property. If set to 2 (As Top-level), VFP will coerce the WindowType property to 0.

Are you sure the form is instantiating? If you aren't seeing anything, then the form may not be instatiating at all. If it is, then you should at least see it flash.

Regards.

>What xconditions can (will) prevent a form class from being modal?
>
>

>loform = create('aModalForm')
>loform.show(1)
>loform = ''
>
>define class aModalForm as form
>ShowWindow = 1
>WindowType = 1
>
>Function QueryUnload
>  This.Visible = .f.
>endfun
>
>enddefine
>

>
>This is not the same environment as that which is preventing Modality but this represents the override form settings which are employed.
>At the time of instanciation the screen is not showing and there are no other forms open. There is a complex environment but I do not know what to look for.
>
>I just need some ideas as to what can prevent modality.
>
>Thanks
>
>Glenn