Warez have you tried removing the device itself (tape drive) via the Windows device manager? Then running a scan to let it detect it again? You are running the latest Veritas Drivers for the unit? Give me a quick run down of how this is connected to the server..via SCSI, USB etc etc..is it a single slot tape drive or a larger say Dell Powervault 16 slot multi tape drive unit? I am assuming you have alerady ran a LONG erase on the tapes?