Hello community, I cannot solve this problem and do not even know where to find an answer. I am solely using my rMBP 15" for photo retouching and I can't tell you have many times I needed to redo my work because the screen brightness was set wrongly. Now, I try to set it to 60% and I hope it stays like this only to find out that it changed when I was half way through the process. It is NOT set to auto adjustment. So why it is changing? It was set to 60% yesterday and today it was again 100%. Do you know a direct way (eMail) to reach apple support? Thanks!