Ok, I am not a moron, but I have been out of touch with the Mac World for a while, due the evils of work. So here is my question, I have a white Macbook, running a 2GHZ Intel Core Duo with 1GB 667 MHz DDR2 SDRAM and OS 10.4.10, ok so I copied that from the About this Mac window. Anyway, what I want to know is can I run Vista on this system as is, or do I need to upgrade to Leopard. And how do I set up my computer to share both. I greatly appreciate your any help, so I will thank you in advance.