Just bought an 11.6 inch MacBook Air. Today I started having an issue with the display. On the first day, when I lift the screen of the computer it comes on like it's supposed to (instant-on). But, as of today, when I lift the display the screen does not come on. Sometimes I have to restart using the power button to get the display back on. Other times I have to push a button on the keyboard, which makes a slight buzzing noise somewhere, and then it comes on after a couple seconds. Sometimes pushing a keyboard button doesn't work at all. Maybe this is related to the screen problems they've been having, because the display did flicker one time when I opened the computer, and then went back off. But, I thought that was already fixed in the most recent software update. Any help?