I have an android car audio system that runs at 1024x600. I have an odd issue where the bottom 10mm of the screen isnt responsive to touch across its entire width. I have downloaded a touch test tool and it shows no dead spots on the digitiser. When I use apps like play store, Spotify and sygic that slither of the screen never records touch if a button is pressed in that zone. Does anyone know how this can even be possible?? I'm stumped.