When I am lying in bed using my notebook and readjust myself either up or down more my laptop makes a clicking noise which seems to come from the inside of the notebook on the bottom right, just below the arrow buttons. Basically whenever I change the angle my notebook is sitting at it makes this clicking noise. My guess is that the hard drive is in that location. It bugs me a little but it isn't really a problem. Just whenever I hear it I wonder what is there. Thanks.