In the upper left hand corner of my screen there is a gray box with the letters GJ912DW110 HSD190MGW1A

Try recalibrating the touchscreen. The procedure can be found here:

http://www.sharc.net/discus/messages/6/77.html?1315261162

Turn off the Nuvi. Place your finger on the upper left-hand corner of the screen and then push down on the power button to turn the unit on. Release the power button when the Garmin logo appears. Continue to press on the upper left-hand corner of the screen until you see the calibration screen.

Press each dot to recalibrate the screen.

Once completed the Nuvi will display Calibration Complete

Not working right. Take it back and have it replaced. It's new as you said, right?

Connect the LCD monitor to a different computer, to see if the text "follows" the monitor.

If you change the Windows "wallpaper", does that text go away?

If you connect the LCD monitor to a different laptop/desktop, does the text still appear?

If you connect a different LCD monitor to your computer, does the text still display?

Hi there

This is probably a runtime error,what you should do is to;

Open Internet Explorer on your desktop. Click on "Tools" in the upper menu and then "Internet Options."

Select "Advanced" and look at the box showing multiple options that can be activated with a green check mark by clicking a little white box to the left.

Scroll down until you see the message "Disable Script Debugging"--one for Internet Explorer and the next for "Other" underneath. Both "Internet Explorer" and "Other" are in parentheses.

Click into the white boxes to the left of each one so the green check mark appears.

Press "OK" at the bottom, and the runtime error messages shouldn't ever appear again when you use Internet Explorer.

go to menu reset tv to factory default.....this will also reset your color/clock and any other customized features but it should knock out that gray box also

Thats the data side of the network...EVDO

Had this problem also when I rebooted my Time Warner Cable box. Unplug everything from the wall including power strip and wait 60 seconds then plug back in and turn everything back on. Worked for me and havent had a problem since. Time Warner does not know what causes this yet.

Consult operations manual to find definition. You might use remote to access menu, then press "display off".

You may find it in your "Menu" button on your remote, search for anything similar to "HD Logo" and turn it off. Failing that, make sure it isn't stuck on with transparent plastic, haha.