Hi all, I bought an Alienware Aurora 7500 in Feb. and lately the large case fan on the back has been making squeaking/chirping noises. I tried contacting Alienware but because my warranty expired they want to charge me $39 just for an answer to the problem, no parts or anything. Any ideas? Also, the power supply is very loud. Has anyone else who had an alienware replaced the power supply and what did you get? Thanks