I have a Gravis Xterminator Dual Control joystick and I want to play an older Mac game that requires an ADB joystick. I don't think that the joystick I have will permit ADB emulation, but is there another product out there that will work with both my joystick and the game to provide emulation? I've heard a lot about USB Overdrive. Does anyone know if this works? Thanks in advance.