We recently installed a Honeywell RTH7600 series thermostat. My problem is that I inadvertently skipped the starting programing part which sets the date and day of the week in the base of the programming so to speak. I have successfully programed the 7 day schedule etc but since the day of the week is 3 days behind the schedule, my schedule is off. How do I reset to factory default and start from new? I have removed the batteries for 3 hours today and the schedule etc popped right back up when I reinstalled the batteries.