I somehow noticed my MacBook Air 13" 2011 hinge was a little loose and fast today. It starts closing it self pretty fast If I leave the screen 2 inches from the trackpad. Opening it seems normal except it opens about 2 millimeters of space when I barely use any energy. It closes it self slowly at 4 inches. Not seeing any major problems but just little problems that annoy the crap out of me. I wouldn't care if my HP or Vaio did that. Do your 2011 Airs do this? It is a 13" if that matters. EDIT: I just figured that it was my case on the screen. I took the Speck Clear case off and it was perfectly normal. I'm still wondering if the 2011 airs have a hinge defect.