My brother had me order him a macbook a year and 3 weeks ago (grrrrr!) and yesterday it stopped working. It will not power on, nothing. He said, the fan started acting strange then it stopped working. Any idea what might be causing this? I can replace a hard drive, but I think if it was the drive or the ram it would at least turn on or make some sort of noise. Please let me know what your thoughts are, he is a poor college student, and I am a poor graduate. Thanks for any thoughts.