[dgbsco]

There's some hacking that has to go on at the OS level with OSX to have any monitor > 27 inches. The trouble lies in that the operating system wants to natively believe that you're actually using a TV, not a monitor.

To get it working you need to fool the OS into thinking that it's a monitor again: http://embdev.net/topic/284710#3027030

[count]

Note that's only for DisplayPort. I use DualLink DVI to my large screens, and it works great without any hacks.