Hey guys, I have purchased my first Apple MacBook last month, and Everything is great, except this one thing. When wake up my macbook from sleep, by opening the screen, it makes this noisy sound for 1 second. It sounds like the hard disk is moving the head or st, or more likely the optical drive is starting to work, but the sound comes from the right side of the trackpad. One of my friends have Black Macbook, and i tried the same thing on his laptop to see if the same thing happens, but his laptop didn't make the noise when turning on, or wake up from sleep. What should i do to fix this noise? help me please.