Hello, My powermac G5 has been off for a week while I was moving apartments. When I plugged it in again the external harddrives (four in all) that were daisy chained through the two firewire ports aren't being recognized anymore. I thought it was a bad cord or insufficient power but nothing worked. When I finally got around to looking at the System Profiler and check Firewire it said, "Unable to list firewire devices". I admit that I'm at a loss and I have no idea how to troubleshoot this. If anyone out there has dealt with a similar problem please tell me what your solution was. Thank you for your time.