After less than 4 months of owning this computer, the screen goes black if it is opened to or beyond a completely vertical position. I'm able to get the screen to turn on if I press on the computer near the hinge, but once I let go the screen goes black again. The hinge itself is fine so my suspicion is that it has something to do with the ribbon cable that connects to the screen. Considering laptops are meant to be opened & closed, having this sort of problem after less than 4 months of reasonable use is pretty bad.