GTX 260 is great solution for OS X as far as I am concerned, it' twice faster than my old GTS 250 and it runs with no problems. The outputs are working, no freezing when I attach LCD TV via HDMI out and no other probleems I've expirienced with GTS 250.
Did u tried the video(that particular part) under any other OS besides OS X?
Anyway, check the new MultiBeast, there's no kexts for ATI 5xxx, just use chameleon RC5 and GraphicsEnabler=Yes, that's how I enabled HD5850 I borrowed from a friend and it worked fine.
Hi m8, I've given up on searching for the solution and didn't see your reply until now.
I am using your 0.0.67 beta derivers and I am able to connect to the net, everything else is working/able to connect to the net except the Front Row.
I am using Little Snitch firewall but Front Row is not...