After running Tomtom on it for the first time the touch screen stopped working after a few minutes and I had to reboot. I Changed voices and turned off Poi's etc. but it still froze so I booted up with out running Tomtom but it did the same again. After another reboot I recalibrated the screen which had no effect.
So after another reboot I tried to run the Document repair utility (Second Pic) and the touch screen stopped working altogether.
I have tried several resets and reboots and left it powered down over night but I cant get the touch screen to work again. When I touch the screen the unit beeps and for some strange reason the motorized front moves in and out and sometimes switches modes but won't acknowledged button presses etc. So it's probably a calibration issue maybe?
Everything else works on the device and I can access all the modes but unfortunately in the GPS mode I need the touchscreen to navigate the menu so I am stuck.
hit the reset button at the front, remove all fuses ( note which one goes where as they are different currents), wait 30 seconds then install the fuses back again, run the document repair tool again, worked for me.
I have a similar problem on mine. Everything works fine except for when in the GPS menu. The touch screen buttons have no response. I have tried a reset including battery reset but still no joy. The only thing I can think of is to restore the firmware but don't know how to do this.