I am having issues with the input on the touchscreen display. Up is down, sometimes the touchscreen does not react. I have tried what's in the install manual page 156 (see attached pdf) to calibrate the screen but that option is not there.   Firmware 1.21   Nav 9.18.28.610126   Device# 062586   BT Firmware  HWo1-SW03.41.12screen cal avic 8000.pdf