1997 Acura 3.5 RL Premium w/Navigation
 

I have a 1997 Acura 3.5 RL Premium w/Navigation. Last October I had some transmission work done on the car. Before the work was done, my navigation was working flawlessly. When I got back in the car, the little icon at the top left was not showing the satellite. I called the dealership and they said that all I had to do was unhook the battery to reset the system. Maybe I didn't unhook the battery long enough. The navigation still works, but its not follwing any roads right now. Does anyone have a suggestion on how to remedy this problem?

Thank you,
Howell