Set video mode to 60 Hz NTSC

main.c

@@ -151,6 +151,8 @@ void init(void)
 	// This not only resets the GPU but it also installs the library's
 	// 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);