It's documented behavor of Dockable property. You can move your code to the Init of the form (class).

>I have this code:
>
>

>oForm = createobject("MyForm")
>oForm.Dockable = 1  && THE FORM DISPLAYS AT THIS POINT!!
>oForm.Dock(1)
>oForm.Show()
>

>
>
>Anyone know what to do about this?
>
>Thanks