Why does MBA mid 2013 screen go black and then password screen come up frozen?
Sometimes when I close my MBA 2013 and then come back to it later to go on it, the screen is first black, and then after about 5-10 seconds it goes to the screen where you enter your password. At this screen it becomes frozen. First of all the mouse is there but when I try to move it, it vanishes and I cant do anything, so I have to turn it off with the power button, and then turn it on again for it to work.
MacBook Air, OS X Mavericks (10.9)