Dear friends, i have a problem with my macbook pro early 2007. It have 2gb ram, 320gb hd, and i've successful installed Mac Lion. It work good for me, but it have only one problem: the fans is often very loud. With iStat Menus i see that the speed is 5000rpm or sometimes 6000rpm. I dont have a lot of programs active. For example now I have only safari with this page and mail. Can you help me to solve this problem? If it's necessary i can downgrade to snow leopard, but lion is good and complete. Many thanks, I'm sorry for my english. I'm from Venice, Italy. Bye!