I purchased the Appigo Todo, but it is behaving rather unexpectedly. I can create a todo item, and if I don't set a due date, it shows up under "Future". This is I assume normal. If I add a due date to it, it would then show up under "Overdue", no matter when the due date is. Then if I hit the "Setting" button and click "Done", which for whatever reason acts like a refresh button too of some sort, the event appears in all categories (Overdue/Today/Tomorrow/Next Seven Days/Future) with "No due date". (See attached screenshot) If I create an todo item with a due date, it never shows up. Or when it did show up, it would show up in all categories. If I then delete the event from any one of the categories, it would initially not be removed from any other categories, until I do the refresh with "Setting" button. Baffled. Help!