My Casio EX-Z55 is 14 months old and has only been used maybe a dozen times. It now turns off immediately when I try to turn it on. I have bought a new Casio battery to check and see if that was the problem, but it still turns off immediately. Casio wants $160.00 to repair it! Anyone have any ideas what is wrong with this or where to get it repaired at a decent price?