I've noticed the japanese version of Pokémon Yellow doesn't work that well on Lameboy. When I load the rom, I just get a black screen, but the sound still works. If I turn off SGB mode, it will work. I've tried the v1.0 and the v1.2 release of the rom, but didn'T try the v1.1 yet. If the problem can't be solved, I have downloaded the v0.9 release of Lameboy, which doesn't support SGB, so it works just well.