FR965 (18 month old) CANNOT use GPS activity

I have done resets, hard resets and even checked for file within watch to be removed.

This started yesterday as I went for bike ride, I started the activity, road about .5 mile and looked at watch for speed and nothing, black screen.  I stopped and tried to get it started again, and acted like rebooting.  Since yesterday and now, I've done a hard reset 4 times and any time I try to engage and activity it simple crashes...

I now have it hard reset again, and simply did not turn on GPS.  Its acting just like before, it works and keeps time (IF I SET IT MANUALLY) but if I set time with GPS, it sets then crashes.

SW is current and updated and has been for awhile.

How do I go about getting Garmin to replace this watch with a working one.

Dave