If two screens (old and new) are doing the same thing, I would look elsewhere for the problem, which probably means going to Garmin. They are pretty good about repair/replacement.
Originally Posted by gunnr
Basically the same problem I had before replacing the touch screen. After replacing the touchscreen it worked for a few days. The screen freezes up, No touch screen buttons work. One button will be a light beige color and not respond. Using outer buttons you can switch to a different screen but will default back to the navigation screen with speed, elev, etc. Gps still tracks route, I can upload the route to PC.