Watching a Netflix movie, if I click on "full screen," I get nothing -- just a stutter. If I do it a couple of times, eventually the screen goes black but I continue to get the movie's audio. I've updated, uninstalled and reinstalled Silverlight, and I just can't get this to work. Haven't had any problems before the Safari update. Any ideas? Thank you!
Go to System Preferences > Hardware > Energy Saver. It's at the very top and therefore easy to overlook.