2199a2200
> 	Uint8 oldg = 0;
2213a2215,2218
> 		if ( (oldg != 0) && (oldg != g) && (oldg != g+1))
> 			std::cerr << "oldg: " << (int) oldg << "g: " << (int) g << std::endl;
> 		oldg = g;
>