Paul bought a new Mac Pro but he's having issues using a third party video card. Leo says that's because of compatibility issues with drivers. Leo says that it's always best to stick with Mac designed video cards or go with Windows. Mac doesn't play well with third party hardware. He should stick with the card that comes with the Mac. If he still wants a third party video card option, Leo recommends going to MacSales. They will have models of cards that are designed specifically for Mac.