How to disable the hotkey graphic overlay in OS X El Capitan?
For some users, it's annoying and even intrusive when adjusting volume to have that gray box appear in the middle of the display. In previous versions of OS X, this could be resolved by renaming the BezelUIServer file. In El Capitan, the file cannot be renamed or deleted, even by the root user. Any thoughts?
MacBook Air, OS X El Capitan (10.11.1), 11" Mid-2012, 1.7GHz i5, 8GB, 128GB