Settings Buttons

  After you have chosen the customized settings you want, click
  on one of the four buttons at the bottom of the dialog box.

  OK        Applies the current settings and closes the dialog box.
  Apply     Applies the current settings but does not close the dialog
            box.  You can apply different settings until you achieve the
            desired result.
  Reset      Returns the settings to the state they were in before the
            dialog box was displayed, without closing the dialog box.
  Cancel    Closes the dialog box without applying any of the settings
            you enabled.

  Additional topics:

  *   Customizing Alarm Settings