APPLICATION WON'T FORCE QUIT OR QUIT!!!
I was using preview then suddenly it got frozen. The next thing I know is I can't restart and shutdown like what used to do the trick because the app will still be on! I tried everything, forcequit from apple, forcequit from app. PLZ I NEED HELP!!!
MacBook Air 13inch
MacBook Air, OS X Yosemite (10.10.2)