None of this makes any intuitive sense.
I created a backup set on a hard disk, and placed the catalog (from the start) on the same disk. At the time, the backup set was in E:\Retrospect, and the catalog ("DRImage.rbc") was in e:\catalog.
Now I'm trying to restore a file from that image. The disk is now H: after a reinstall of Windows 10.
When trying to open the backup set it asks "Where is the Catalog File for DRImage". When I navigate to H:\catalog, no matter what I do it says it cannot find the file.
This seems awfully broken to me. If I point it to the catalog, it should find the catalog. The catalog was updated just yesterday, the only thing that has changed is that the drive letter has changed.