I just got my Beltronics RX65 6.1 for xmas and its already showing a SELFCAL message. It flashed to SELFCAL really quick, back to autoscan, back to SELFCAL real quick and so on. It does it for about 10 mins or so and stops. It happened for the 3rd time tonight. I did a search and Im not getting a service required message so does that mean its fine or what is going on?