My iMac has the following drive array connected to it: Directly connected: 1xUSB 2 500Gb External (GDrive) Directly connected: 1xFirewire 800 LaCie 120Gb External daisy chained to: 1x Firewire 400 500Gb External (GDrive) daisy chained to: 1x Firewire 400 500Gb External (GDrive) This morning, trying to connect to the 120Gb drive, its icon has disappeared from the network. The two drives connected to it are both available. I have no error messages from the 120Gb drive to say it has failed. I've tried replacing the Firewire 800 cable and also connecting it directly to the iMac with a Firewire 400 cable. However, as the 2 daisychained GDrives can be seen, even though the LaCie is positioned directly between them and the iMac, the cables aren't at fault. Power to all the drives is fine. Help!