To Do List problems

Just ran into some problems. Can't delete finished tasks. Can't change the wording of a task. Alphabetization doesn't work anymore. It's acting like there is a limit on the number of tasks it will handle. Press Enter after typing a new task and it deletes the wording of the task (but leaves the line open).

do you use registered version of TLB? ToDo List have restrictions for unregistered version.

I have the registered copy.

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