Got a new Dell U3014 30" monitor to replace my burned out 24" Dell, but the diplay is terrible! Blurry and blown out colors, the text is all scrambled. I tried the ruby patch from termminal which worked, but made no difference in the monitor. The system is a Mac Pro 8core from 2007 running 10.7.5, not compatible with 10.8.5 as I've heard this os update fixed this problme. I've also tried this monitor on my 2011 IMac 27". The display is better under 10.8.5, but the max resulution is only 1920X1080 instead of the native 2560X1600. So it seems this monitor doesn't work with any of my Macs! Any Ideas? I really need this on my Mac Pro though, try the IMac was just to see if OS 10.8.5 made any difference.