A most annoying thing just happened. My PC (Win 10 64-bit) crashed when Pegasus Mail was running, and when I rebooted and opened Pegasus Mail again, I got an unexpected message stating that I was using and older version of the program.

Somewhat bemused I clicked through the notifications, and then found out something even more unexpected. In the Folders Window, the tree structure of filing trays had completely disappeared. Now all my folders, hundreds of them, are in a single list one after another, in alphabetical order. Tedious to say the least.

Is there a way to get the filing trays back? My mailbox is backed up daily, so if there's a file missing, it's likely I can retrieve a copy from yesterday.