To All the Computer Nerds...

I need your help. My laptop (which is two years old) has the loudest laptop fan you'll ever hear. I never used to notice it at home, but once I started bringing it to class on a regular basis, several people commented on the noise. And by commented, I mean pointed out that when the fan turns on, it sounds like a 747 taking off. Can I fix this? If so, how? Please email or IM suggestions to barelylegalblog@gmail.com /AIM: barelylegalblog