BESR 2010 drive C: not appearing after migration from RAID 0 to RAID 1

I have a Dell PowerEdge 1600SC with PERC 4/SC controller running Windows 2003 R2 Enterprise 32 bit.  Formerly had 1 SCSI drive in RAID 0.  I added a second SCSI drive and created a RAID 1 mirror.  System boots fine, everything seems ok except BESR 2010 shows the old C: drive in the list with the red X, and the "new" C: drive does not appear in the list even if I check Show Hidden Drives.