I have solved this problem, hopefully this may help people in the future. This morning I turned the gps on and the maps worked. Showed terrain and contour lines, trails, everything. I just turned it on again tonight and the screen is black again. Ah Ha! While I consider it utterly stupid, the gps goes black at night and only shows roads.....under settings>Colors:mode and setup>mode. You can change the setting to day instead of auto or night and the maps will work as a GPS should. Day or Night.
Also: be aware that the 22x will only recognize up to a 32GB sd card. Otherwise it will load all maps onto the internal storage and now the memory is completely full......despite having a completely empty 64GB sd card installed.... Expensive junk this GPS.....