H hello880 macrumors member Original poster Aug 15, 2011 67 0 Sep 27, 2011 #1 I have a MBP 2011 13" and it keeps making this hissing sound in the top left corner whenever I turn the brightness down to more than half... does anyone know what the problem is?
I have a MBP 2011 13" and it keeps making this hissing sound in the top left corner whenever I turn the brightness down to more than half... does anyone know what the problem is?