Help! I have a white Macbook 3,1 but no restore DVDs. I just purchased Leopard from the Apple store, and upon attempting to install it asks me to select the language and then tells me: "Mac OS X cannot be installed on this computer" This is a supported machine that was running 10.5 before. I am giving it to my sister and wanted a clean install, but now I'm just screwed. Any ideas? I've already formatted the HDD (doh).