Hi all, I own a Classic MBP that I purchased in June 2007. As such its over 4 years old. It came with Tiger, and it used to be blazingly fast. Now I have Snow Leopard, and it's just not as fast as it used to be. I have formatted the drive, and installed a fresh copy of SL, but it didn't make a difference. I have a feeling that if I install Lion, then it will slow down the machine even more. Has anyone experiences issues after installing Lion on a 4 year old machine? Thanks!