Hi, Just got my first MacBook (13" Pro Retina), having difficulty with using keyboard shortcuts. On System Preferences > Keyboard > Shortcuts I find this: (I can't see this image when I preview my post so here's the URL: http://imgur.com/92xdoUK ) But when I hit F12, my volume goes up! It seems like the F12 key has two functions assigned to it, and the volume function takes precedence. I have no idea what's going on here or how to rectify it. Can anyone help out? Thanks!