Always on top, no matter what, loading screen?

[BadMouth]

I'm having trouble making a loading or blacked out screen persistant enough to cover up Makaron v12.7 while it's loading.
I'd done this before while running the vertical shmups windowed by throwing up black GUIs in authotkey.

Code: [Select]

Gui -Caption +ToolWindow                                       
Gui, Color, 0                                                                               
Gui, Show, x0 y0 h%A_Screenheight% w%A_ScreenWidth%, HSHIDE   

Gui, 2: +AlwaysOnTop -Caption +ToolWindow                                       
Gui, 2: Color, 0                                                                                 
Gui, 2: Show, x0 y0 h%A_Screenheight% w%A_ScreenWidth%, HSHIDE   
I also tried using splashimage.

The new build runs the game fullscreen instead (rotating monitor), the script successfully covers up the first NAOMI dialogue box, but fails to cover the NAOMI - PVR window that shows for a second or two before the game goes fullscreen.  This wasn't an issue with the previous setup because the game would start in that window.  I also had to set the resolution in Makaron to my desktop resolution to fix a problem when exiting back to Mala.  Apparently that affects the size of the windowed PVR window and it's now the size of the desktop and a bigger eyesore.

So are there any foolproof methods of keeping everything concealed until the game goes fullscreen?