Hi guys, my early 2009 Macbook has been having some fan issues. When I do something processor intensive and the fan gets to around 4000-5000 rpms it sounds like the fan is hitting something. It almost sounds like my macbook is going to take off! It is very annoying and I am concerned that it is going to ruin something else. I have Applecare however I don't have the time to send them my Mac since I need it for college at the moment and I don't have another computer to use. Do you think I should get this resolved immediately or is it ok if I wait until I don't need it as much? Is this a known issue?