The system will convert your old database to the new format
Scenario
When you update to the Case Taker version 2.0.9.9, the program first says that the system will convert the old database to the new format.
When you press Yes you get dozens of messages: "Error while saving box XXXXX is Invalid file format".
Solution
Press the OK button for every single error message and then the program will continue as normal, including the next time you start it.
If you use the Task Manager to shut the program down while there are still error messages, the next time you start the Case Taker, the same messages will display.
Note: bug reported to JS