I have an Elite 7 ti touch screen that is about 2 years old. When I turn the unit on a disclaimer appears on the screen along with an agree button. I hit the agree button and the unit beeps but does not go to the sonar/gps screen. I need to continue to hit the agree button, sometimes 15-20 times before it will go to the sonar/gps screen. I've tried hitting agree once and waiting but it never goes to the sonar/gps screen. Any thoughts on what the problem is?