I have a 2011 13" Air that I got in August. Recently, when I've been using my macbook in a silent room, I've noticed a weird clicking/ticking noise coming from the keyboard/trackpad area whenever I use two finger scrolling. The noise is really faint but it sort of sounds like the soft constant/fast clicking noise made by a hard drive when it starts up in an idle computer. It sounds like the startup sounds made by this hard drive in the video except my sound is constant whenever I scroll. http://www.youtube.com/watch?v=8QwAQyci2eA I took my laptop to the Genius bar and I don't think the Genius understood my problem. He said something about tension in the trackpad and sensors under the glass and how the clicking is normal and proceeded to click/press down repeatedly on my trackpad to show me right clicks. My problem does not happen when I click/tap the track pad. It just happens when I two finger scroll (which does not require pressing down). I googled this but no one seems to have this issue. The trackpad works fine but the noise is driving me crazy!!! Anyone has any idea what's going on or if this is normal?