"How to clean Greasy spots on the display"に関する回答I assume you are talking about the purple/green chromatic smudges that appear. So here’s what I usually do to get rid of them: (do this in a well lit area so you can see the light reflections on the screen, it will make it easier to spot the chrome smudges) (1) Dampen a cloth, kitchen cloth or an old clean shirt with water, make sure to ring it out, and dab a little dishwashing liquid on it. (2) Using the cloth wipe down your Macs screen from top to bottom, sometimes you’ll have to go over certain areas a few times to get rid of the chrome smudges. (3) Using tissues wipe off the water. You may have to go over your screen with a little pressure using new tissues to get rid of any water streaks that may still be there. Enjoy your clean screen…………. AND STOP TOUCHING IT WITH YOUR HANDS! MACS ARE’NT TOUCH SCREEN!