Hello fellas, Maybe a strange question, but let me ask it anyway. What is the right way to turnoff a Apple Cinema Display 30"? When I put my MBPr to sleep the ACD turns off and shows a white light. I always turn it off after that with the power button on the right side so the white light turns off. Is that the correct way or is it better to just keep the white light on? Does it maybe harm the display to always have it turned off with the power button? Does it consume much electricity when I leave it on with the white light? Thanks.