I have the system discs here from a brand new macbook that is dead due to liquid spillage(you can see my other thread about this). It was less then a week old!! Anyway, I've bought a replacement and I tried to use the system discs to install leopard on this replacement. When I hit restart after inserting the disc, I get to the point where it asks me to choose the install language, and then it gives me the error: "cannot install mac os x on this computer" I can't for the life of me figure it out, unless it has to do with my newer system was a Core 2 duo and this is just a core duo? Also, when I click the apple, and go to "About this Mac" the "More Info" button is grayed out....anyone know why that is? The current version on this computer is Mac OS X 10.4.11 Thanks in advance guys!