When starting xplane I choose the Cessna and airport from main configuration screen. Loading takes place and the cessna appears but the attitude and HSI gauges are just black with red marks for the attiude and heading bug and compass points.
The same happens with other planes. Aircraft failures are set at always working.
I have uninstalled and reinstalled xplane but the same happens. I have removed all external controls and it still happens. I have removed all plugins and it still happens.