Thanks for replying.
That didn't work, but I did find the troubleshooting page under the
Tools button (I did have to press the screen to the right of the tools
icon to get the tools page and the troubleshooting link).
Under "Touch Screen Not Responding" it said,
"If the touch screen is not responding properly, calibrate the touch
screen. Turn the Nuvi off. Then slide and hold the Power key to the left
for about 30 seconds. Follow the on-screen instructions".
I did this numerous times, but never got the calibrate instructions
page. All it did was to start the Nuvi up normally with no corrections.:-(