Hi, I have a MacPro 3,1 (2008) with the standard issue ATI Radeon HD 2600 XT installed in slot 1. I want to have three monitors cause I'm a dork like that. I purchased a second identical radeon card and installed in slot 2 (16x). Then I connected my monitors (2xNEC EA241WM) to the new card in slot 2 and fired up the machine. Everything worked fine except there was no picture on the monitors. I then disconnected the monitors from the new card and plugged them into the original card (slot 1) and they work as they always have. In System Information under the Graphics/Displays tab, it shows "ATI Radeon HD 2600 XT" in slot 1. Slot 2 just says "Display" It indicates that there is No Kext Loaded. I don't know what that means. I also do not know why the second card is not working. Are these two things related? Do I need to install a driver for the second card even though it is the same as the first? Is there some slot protocol that I don't know about that says video cards have be installed on odd number slots, or some other such secret code? I feel confident that I am not the only one to try to do this and even more confident that someone out there reading this knows exactly what I need to do to make this work. Any and all help is greatly appreciated.