Code:

#include <acknex.h>
#include <default.c>



////////////////
//Mainfunction//
////////////////

function main()
{
        wait(3);
	fps_max = 60;
	video_mode = 8;
	video_depth = 32;
	video_screen = 1;
}



this works for me.
what 3dgs version do you have?


Ubi bene, ibi Patria.