I have installed a Sony SDT9000 DAT unit via a Symbios SCSI adapter. Both devices are detected by Win98 and show up in device manager OK. When I run MS Backup I get a message saying that no backup devices are installed and that I should run the 'New Hardware' wizard to install (this achieves the same result). Does MS Backup support SCSI tape units? - I believe that the 95 version did not.