When a task notification deadline occurs, reminders and notifications appear, the settings for which are listed in the sections: Reminders and Notifications Settings.
When a task occurs, if the appropriate settings have been set:
1.There is an audible signal.
2.A system dialog with a task reminder appears on the screen.
3.A dialog box containing task reminders appears on the screen.
Select a line in the list, click to open the edit dialog pane of the task.
If you want to postpone or stop reminding about a task, select a line in the list, then click or .
If you want to postpone or stop reminders for all tasks, use the buttons or .