Hi, I tried to upgrade my old macbook (2ghz core2duo) to a 360 gig seagate hard drive. When it prompts me to designate a destination drive for the OS, nothing shows up. It's grayed out to for "continue". But on disk utilities, it indicates the presense of the drive, but I still can't get the OS to install. I've tried both Tiger and Leopard. Suggestions? Thanks.