Hi folks, I need a bit of help with a major problem I'm having. Recently, a friend of mine had his graphics card crap out on him due to static damage. He's chosen to replace it with an ATI Radeon 4870, a card which several local Mac techs have assured us will work. Now, the issue with the old card is that it "kind of" works, in that we can use the desktop for about 10 minutes before it shorts out again. Animating anything (like opening a window) will also do this. With that in mind, we have a problem. To my knowledge, the 4870 needs some configuration done, not the least of which is installing new drivers. Sadly, he doesn't have Snow Leopard, just Leopard, so the driver isn't onboard (my understanding is that Snow Leopard includes the driver). How would I go about installing this driver? I have a Macbook Pro on hand, I have all the wireless and wired internet in the world to work with. What can I do to fix this? Thanks for all your time!