Hi, there. I have an early 2008 macbook pro and I am wondering if it's normal that the fans are making a faint buzzing noise, here I mean not the air being blown, but rather a mechanical buzz. It's only to be noticed in a silent room (which is where I am, I'm a student). It's really clear if I put my ear to the back of the computer underneath the right fan (I now this is not the optimal position for work ). I should mention that I've already had it repaired twice for this problem, but is hasn't helped a bit. Best regards, Ludwig.