I have a Gigabyte MB GA-MA790XT-UD4P running Win 7 Ultimate. I have an IDE boot drive with 8 WD 2TB drives. All has been running fine for a year. Now after have a crash while video editing 3 of my WD drives are no longer seen in explorer or the Disk Manager. WD diagnostic sees them as ok and the BIOS see's them. How can I get them back online? Is this a registry issue.