Hello, I have 2 MAC G4's and I just put new harddrives in them. The harddrives were formaly running windows. I have an img copy of Leopard and I was wondering how I could install leopard from a usb HDD. I am using a windows PC to transfer the files to the Harddive.... Do i just extract the cd image to the harddrive? Then once I boot up i see a folder with a ? i believe... How do i change the boot order so it will boot from the USB HDD? Sorry i dont know a lot about mac. Thanks!!