In case anyone reads this and has an issue with the Magellan M-Nav not working properly. Power down. Turn it back on. Wait for it to load. Go into the tools menu. Hit saved info. Hit calibrate screen. An X will show in the middle of the screen. Tap the X. An X will move to the upper left,tap it. Upper right. Tap it. Lower right. Tap it. Lower left. Tap it. Then it will give you only a few seconds to tap the screen again to end the process and this saves the calibration to the unit. Hit back button, and exit everything until you get to the home screen. Hit the Nav icon and go to the Navigation screen. This should have fixed the buttons issue.