Hi guys, I've got the white Macbook with corel duo and I've finally decided to upgrade my OS from Tiger to Snow Leopard. I've finally got the DVD but I'm having a problem with the installation. When I double click on the icon to install it, a window pops up with the X on background and it says I need to restart my computer for installation to start. O click on "restart", it asks for my password and after pressing enter again, computer restart but installations does not start, it just goes as if I was just restarting the computer. I've tried several times, even got another installation DVD but I get the same thing. Does anybody have any idea on why I'm having that and how to solve the problem? Cheers! PS: by the way, I've checked lots of other posts everywhere but could not see anybody with the same problem as me. PSS: I'm not super familiar with OS yet, since I've used the computer mainly for music and stiff and never really got bthe time to dig in and learn how it works, so the simplest the vocabulary the best.