Hey guys - I've just noticed my Macbook making a very strange noise every few seconds. It sounds like a muffled mouse-click almost, and is very, very annoying. It's not very loud; but it doesn't need to be loud due to the nature of the sound. Has anybody else experienced this? Or know what's causing it? I looked it up online, and I really don't want to take this thing apart. --------- Edit: As my power supply and computer are literally two inches away from each other, I had incorrectly assumed it was the Macbook making this sound. It is the power supply; only when charging the Macbook. Sorry for the mis-post.