I'm trying to install OS X on an external firewire HD, and I've done it before, but it doesn't seem to be working now. Here's what I'm doing: I've got the firewire drive on and ready to go (it's formatted at as Extended (Journaled)) I've got the Tiger disk in (10.4.6). When i restart, I'm holding down C. What happens next? It goes straight to the log in screen (meaning it's booting the installed OS on my MacBook's internal HD) What am I missing? Thanks!