This has happened to me twice since replacing my cable.

The first time, I had not securely connected the cable to the board (I triple checked the connections on the drives, but somehow didn't check the board connection)

The second time, I had left the player in my car overnight and it was COLD. After warming up the car a bit, it booted fine. I heard the Fuji drives are more temperature sensitive (to cold) than the IBM's. I really shouldn't have left the thing in the car overnight anyway. (as a theft deterant too)