If the field Open items to remind is set to 'YES' and the field Open items never reminded is checked, the program will display all the open items to be reminded and that have not been reminded yet.
If the field Open items to remind is set to 'UNDEFINED' and the field Open items never reminded is checked, the program will display all the open items to be reminded and that have not been reminded yet, as well as all the open items that have never been reminded and that will never be reminded..