Hi, Our 12 core turned up the other day, and having been set up and ready to go we've moved it onto the right desk with 2 monitors, a 21" HP and a 27" Philips 272P4. The resolution is fine on both, but the Philips is blurry and the HP is not. Taking a screenshot of the menubar on the blurry Philips and then moving said screenshot across to the HP results in the screenshot no longer being blurry. I have attached some pictures below. This was not a problem on the previous mac pro at this desk, and the problem doesn't seem to be affected by cable changing. I am currently using a mini display port to displayport, but it is still there when using a mini DP to HDMI and also HDMI to HDMI. LCD font smoothing is on, although there is no visible change if I turn it off. From doing a rather extensive google search I've tried using the ruby patch-edid display override fix which you can read about here which gave me an override folder to put in the Display folder (which has moved in Mavericks it seems, I had to go digging). Either I've done something wrong or this doesn't seem to do anything either. I'd very much appreciate any help you can give me!