I'm not sure what you mean about the card being jumpered, but there is definitely an LC version and a full version of the ROM for that card. Can you tell me what kind of chip the ROM is stored on, under the little sticker. It's the one in the socket over in the corner. If I have a compatible chip on hand, and can ever find an hour, I'll burn you a copy of the later ROM. Then we can see if the Math scores change.