My macbook had an unfortunate incident today (fell) and now when I turn it on it takes me to the white boot screen but after that there's just the apple logo with the loading circle below it, is this a sign that my hard drive is dead? If not is there anyway for me to boot up OS X (Snow Leopard) normally, the screen seems as if it's not going to move anytime soon, can some please help me I'm really stressing out about this. Any help is much appreciated