KiPro not recording, and Reel N/A

Does anyone know what would cause a standard KiPro (running firmware version 2.0), with both a 250GB and a 500GB Drive to not recognize either of the drives when they are mounted? It has happened twice now in the last 2 weeks. The first time I was able to reformat the hard drives and got them to record normally. Today they reformatted (or at least said they were reformatting) but would not record, and said Reel N/A for both drives. We tried all the normal power cycling, propper use of the slot button, booting up without the drive, and then mounting the drive after startup, and nothing worked.

any help would be appreciated

Butch Henderson
KCPQ-TV, Seattle