Here are some screenshots. Disk Management shows it as Disk 3: Online, but it doesn't show up on the volume list. Also, no blue line across the top of a white box next to it. I must be a newbie as I don't know what that signifies. I'm also attaching a screenshot from the RAID management software. I deleted all the old drive letters in the registry that were associated with the drives that were removed from this server and installed in the one that replaced it. If it makes a difference, the drive in question was brand new, still factory sealed. Another odd thing that I just noticed: MegaRAID thinks my OS is Vista....