640x480 fullscreen problem

[PuNKKoMmANDO77]

Hey guys, i have recently finished my new game A Cat's Night 2, but when i try to play it (by the compiled exe or by the prject without debugger) in fullscreen the game start windows 640x480 but framed in black (in the laptop) otherwise in my other computer run in fullscreen normally.
I try to change graphic card and graphic filter but all the filter give me error.
I make the game with AGS 3.2 the same version that i use for A Cat's Night 1, but the first can run in fullscreen.
So my question is, i forgot to set a value in the project?
My laptop max resolution is 1200x800.
Thanks