WinNT scsi drives “off-line”

After reloading Win NT 4.0 with service pac 6 due to a C: drive corruption, I get a message from Disc Administrator that my attached SCSI drives are there but are “off-line” and to go to SCSI bios to verify. I did this and all seems ok. While booting up the SCSI adapter and all 3 of the SCSI drives are listed OK. Yet When I go to strip these three drives in raid 0 with Disc administrator, they do not show up and the “off-line dialogue mentioned above appears. How do I get WIN NT disc admin to recognize these drives?