From time to time for example, on start up, "a reminder" note would appear.
It might refer to one past event or several. The "Dismiss All" box when
"clicked" did what it should dismissed them all. Recently on start up, all
such reminders previously dismissed re-appear. Thus it appears that the
dismiss all removes the reminders for only that time the computer is running
If rebooted the reminders re-appear. The dismiss all function is only
temporary. How do I fix this problem?