I normally backup to a hard drive (assigned drive letter Z). A couple of days ago I used that drive to test a USB SATA enclosure, and temporarily re-assigned the drive letter as F, returning it back to Z after the test when it was re-attached to its usual motherboard SATA connection (a re-boot was done to "register" the new drive letter with Windows).
The next time I did a backup with NG, I noticed that none of the previous backups appeared in the Manage Backup Destination window, even though Windows Explorer shows that they're still there. How do I "re-connect" NG with those backups?