Set video mode to 60 Hz NTSC

main.c

@@ -152,6 +152,8 @@ void init(void)
 	// ISR subsystem to the kernel
 	ResetGraph(0);
 
+	SetVideoMode(MODE_NTSC);
+	
 	// Define display environments, first on top and second on bottom
 	SetDefDispEnv(&disp[0], 0, 0, SCREENWIDTH, SCREENHEIGHT);
 	SetDefDispEnv(&disp[1], 0, SCREENHEIGHT, SCREENWIDTH, SCREENHEIGHT);