Hello, I have a 2007 Mac Book Pro running all of the latest software. However, recently I have been hearing very loud buzzing noises that sounds like a swarm of bees coming from the back left of my computer right near the speakers. I'm fairly certain that it is either the hard drive or the fan because I don't know of any other parts moving fast enough to make a buzzing noise in that area. It had been happening usually once or twice per week originally a simple reboot used to do the trick, but since the beginning of today no amount of restarting seems to fix it.. In fact it is even buzzing right now while I type this message. My warranty expired a while ago and I don't want a new computer so if there is anything I can do to fix this that would be great. If not, I can take it to the apple store and see what they can do. So any help is appreciated. Thanks! Edit: Two more things - 1.) Closing and opening my computer fixes the problems for 30 seconds to a minute until it starts back up again. 2.) iStat Pro says that my right fan is rotating usually between 6 and 8 times faster than the left fan while it is buzzing. The left fan is at about 600rpm while the right fan is usually at 3,000-5,000. However, for the 30 or so seconds while my computer is back to normal they even out at about 3,000rpm each.