Hi, just got an OB-X and was wondering about the ROMs... Does anyone know what version was the latest? My ROMs are labeled "ID1" and "IB0". Also, this uses the old 2708s, does anyone know of a mod to use 2716s like SCI did with the later Prophet-5s which would also allow a more simpler power supply without the need for +12V and -5V? Thanks, Doug