Just checking to see if others have experienced... I have a Garmin Zumo 550 that I have been using since new, about 4 years. Lately it seems that the touch screen interface is failing. In bright sunlight there is an opaque pattern of dots that appear like a mask over the screen, and when I touch a selected command it often will pick an adjacent field, or nothing at all. Any option that allows for using the "+" or "-" hard keys works great, so it does appear limited to the touch-screen interface.
Looking for ideas as it is becoming less and less useful as this issue seems to get progressively worse. I hate to trash it, but at some point... :headbang:
Any thoughts appreciated.