This has quickly become one of my favorite apps; unfortunately, when I installed the OS 4.5 beta, all my lists went bye-bye. Is there any way I can recover them? I ran a backup with DM right before I did the update. I looked to see if I could restore them using part of that backup file, but I don't see anything that appears to be related to MaraTick. Thanks in advance for any assistance - and thanks for writing the app!