Hi all, Maybe one of you can help. I've got a problem with my Western Digital myBook 500Gb external harddrive when I connect it to my (new) iMac 20" using the firewire 400 port. The drive does not show up on the desktop, not in diskutility and also not in the systemprofile (it just says 'FireWire-bus: Maximum speed: maximum 800MB/sec'). To make sure there's nothing wrong with the port I connected a Canon DV camcorder (using the 400 port but using different firewire cable). I shows up correctly in the systemprofile and I can get data of that. So, I assume the port is functioning properly. To make sure the external drive is working and there's nothing wrong with the firewire cable, i connected the drive to my 'old' iMac (a core duo 17") and it all works fine. So, the device must be ok and the cable aswell. Any ideas what could be wrong? - Both macs run osx 10.4.10. - If I connect the drive using usb, it all functions correctly, i can even boot from the drive. Any help would be very much appreciated.