>Or rather _SCREEN.Visible = .F. of course.
>
>> SCREEN = OFF on Config.Fpw only works in running EXE File. You should have a Form with ShowWindow property set to As Top Level (SDI) to make it work. In this way, the said form will work as your Main Window. All sub-forms (child forms) therefore should have a ShowWindow property set to In-Top Level.
>
>> If you do not want to use SDI, issue _SCREEN.VISIBLE = .T. or APPLICATION.VISIBLE = .T. on the main.prg, and everything will work fine.

You did not get me here. My point is, if not to display the foxpro main window upon execution of exe file, at config.fpw issue SCREEN = OFF, but you have the option to activate it if you do not want to use the VFP _SCREEN resources, but if decided to use it, you should issue _SCREEN.VISIBLE = .T. so that your forms will be displayed on the screen that is assuming you don't want SDI form.