External harddrive sounds like it's working but can't be seen at all
I have a Maxtor One Touch II 300gb firewire/USB external drive that worked fine the last time I used it, now I cannot get my Mac to recognize it. I have tried multiple cables, both firewire and usb; I've tried it on 3 different macs and a PC, I've bought a new powercord for the drive itself. The drive spins up and you can hear it engage (click) like it normally would when functioning properly; all lights on, etc. The drive does not show up on the desktop, system profiler, Disk Utility, nor can a variety of Terminal commands trick it into being seen. There are files of importance, obviously, on this drive so I can't just shrug it off. Does anyone have any other ideas on what might work, or something I may have missed? Of note: I have gone through a slew of threads and none seem to address my specific problem; and the ones that are close, I have tried their suggestions (as listed above). Thank you
G4, Mac OS X (10.5.8)