Okay, so I have an old iMac- Intel, late 2006, 24". I bought it new, it was the first computer I ever have bought new. It was great, but I knew the GPU was cooking, as many MANY owners have found out over the last six years. First of all, I'm poor. Second of all, I don't want to give up on a computer that still works perfectly in every other respect; trashing this thing is NOT an option. SO, yesterday, I opened her up and gave her a thorough cleaning, and even repasted the GPU. The operation went smooth as silk... Alas, when I fired the beast up afterwards, there was minimal improvement. Obviously the card is shot. SO, WHERE THE HELL CAN I STILL FIND A NVIDIA 7600GT CARD FOR THIS THING THAT WILL WORK ON A MAC? Everyone who lists one shows it attached to the heatsink. I have a perfectly good heatsink inside the damn machine. I just want the card! Even so, most of the places that people SAY they got their replacement from DON'T EVEN HAVE THESE IN STOCK ANYMORE ANYWAY! It's incredibly frustrating. There are only one or two of these things on eBay right now. What gives? Is there a way to get another Nvidia 7600 MXM card to be flashed to work with a mac? OR ANY DAMN OTHER MXM CARD, FOR THAT MATTER? Other than firmware issues, I see no reason that an MXM card won't plug right in and screw together happily with the damn heatsink assembly. Surely I am not the last man on Earth who is trying or HAS tried to do this... all complaining about Apple's exclusivity and user-unfriendliness aside, is there anyone who can steer me in the right direction? Anyone who has had this problem and conquered it? I have been inside the computer. I have checked every possibility. I just need to pop in a stupid MXM graphics card and have it work, and not get utterly ripped off in the process. It HAS to be able to be done. There is no reason that this should be too difficult! If you have a source for one of these- let me know! If you have one of these you want to sell me- let me know! If you know how to adapt another card to work in this beast- PLEASE LET ME KNOW! I appreciate any and all help, friends. Thanks for bearing with my rant.