I have a Macbook that is fairly recent, from around October 2007. Its a 2 GHz Intel Core 2 Duo with 1 GB memory and a Macintosh HD disk and is the version 10.4.11. I have a legit download disk for Leopard. I put the disk in and click download and it takes me to a screen asking me my language of preference. I select english and press the next button when it gives me a message that says I can't download Leopard on this laptop. I meet all the system requirements to my knowledge. Can anyone tell me whats going on and how I can download Leopard? Thanks!