Recently at an estate sale, i saw a jade monkey in the corner. A $200 offer, and i took it home. I collect IGT, so this is new to me. A used bill validator and a ram clear card, both from ebay, and im in business. The BV was fried. All in at $270. My questions..can i add a dual screen? When i was setting up the game after the ram clear, i thought i saw the option. Luckily, the machine had both cards in it. ( game and os). Can i change the game by simply changing the cartridge? Or do I have to do a ram clear again using the new game card? Obviously, the glass will stay the same, but the game will change. Hopefully I'm correct.