Hi, I hope I am right here as I am struggling a bit with the language. So, I got myself an old classic GameBoy with Background-Light and ProSound-Mod. If I plug the SmartCard into my GameBoy Color, it boots directly the LSDJ-Demo. But if I plug it into the DMG, nothing happens. Neither the Nintendo logo shows up nor the boot sound rings. Every other game seems to work fine. Does anybody have an idea on how to fix this? Thank you.