hello, i got an aluminium iMac. however, today when i tried to connect my FW800 Hard drive it did not work and it works by FW400. i connect the same Drive to my MBP using FW800 and it is working flawlessly. i am still running tiger while the MBP has leopard anyone can guess what could be the problem? thanks. i wonder wether the returned My Book Studio has any effects on this. i returened it because i couldnt get it to connect via firewire. i really hate this as i use that lovely FW800 port a lot.