Hi This question has been asked before (http://forums.macrumors.com/showthread.php?t=1012459) but it did not seem there was any resolution. I'm buying a mac pro and want to know if either the 5770 or 5870 graphic card can run in 30 bit colour. My current monitor is 30 bit compliant and I believe that 10.7 is compliant as well. Looking around, I have not found a categorical Yes or No on this question. There are other graphic cards that are compliant - 4870 and the Firepro series - but I have heard that the 5000 series may just need a driver update. Can anyone enlighten me please?