on screen display volume/brightness not displayed correctly
Hey, Ive been facing an esthetic problem:
my on screen displays for voulme and brightness display with black corners. I did a clean install of Yosemite on a Macbook air mid'11.
It suddenly occured yesterday and I don't have any clue why! I already tried resetting pram and switching to the dark theme without any success. For tips I would be really greatful cause its a bit of a pain in the eye 😉
Here is a screenshot: