Hello, I have a black 13 inch macbook and i seem to be having hardware issues. After closing my macbook into sleep mode, the apple light on top stays lit and the computer itself makes a strange clicking sound. I tried to avoid the problem by never putting it into sleep mode and completely shutting it down after using it, but i still get the noise. Occasionally, while in use, the computer will freeze and it will start making the clicking noise. To get it to stop, i have to shut the computer down by holding the power button down, or literally bang on the computer with my hand. I have friends with macbooks who have never heard of anything like what i am experiencing, and i don't know enough about computer hardware to narrow the problem down myself. I would appreciate any help or advice, so i dont have to barbarically beat my computer anymore.