Yeller

Hi All,
New to the forum,
Just picked up a 2011 210 wake, with 155's ...
I am having major issues with the touch screen, does not always respond, will skip from screen to screen, and ultimately will lock up on a nav screen...

I have seen a few topics regarding loading maps, however, I was curious if anyone knows how to resolve, or if there is a reset.
Thanks
BTW, great site,..!