In reference to thread thread751-1089279 I had a while back, I finally discovered that the problem was caused by a SCSI PCI card that I had installed. As soon as this was removed, all worked as it should. Now, is there any reason why an integrated Promise SATA cannot co-exist with a PCI SCSI card? If so, is there any way around, or if there isn't, can anyone suggest a reason for the problem? The SCSI card is used for a DAT drive, and for the majority of the time is not used, but I would like to reinstate it if possible....