Hello everyone.I want to install Snow leopard over my late 08 aluminum macbook's 10.5.8 leopard.The problem is that im using my newest macbook's pro snow leopard installation dvd but when i boot from it on my macbook i get the message snow "leopard 10.6 cannot be installed in this machine".I tried repair permissions,reset PRAM but it doesnt work.So what can i do?Anyone can help me out?Thanks a lot!