This has happened to me NUMEROUS times. You have to reset the unit and it's a pain in the butt because you lose all of your settings. Basic settings are not easy to re-do, but inputting 30 My Favorites presets on the NET function sucks. They should fix this in an update or do a recall - they know it's an issue and they've done nothing to help. I have spoken to a half dozen people who have had this issue or know about it.