I bought a Western Digital MyBook 500 GB Hard Drive recently. I have it connected to my Airport Extreme Base Station and it works very well. The problem I have is when hooking it up directly to my computer. I tried doing this on both firewire 400 and firewire 800 since I have a lot of data to transfer. It won't even show up on my screen. I know the computer is seeing it's there because when I remove the drive it says how I remove a device improperly. Even Disk Utility shows it but I can't find it in finder and elsewhere. Any idea what I'm doing wrong?