On my emulator I cannot get the dond on £100 quid working. Some £70 do work but not one £100 have the dx but when I bring up a game no initialise nothing just blank. Cam someone explain the design mode side of thing please so I can get it running. How the dip switches should be set etc. Or is it just bad luck. Some work some don't. Is it Just like mame arcade rom same principle.