Hi @ian57 - I figured out what the problem was.
It probably helps if I provide a bit more background info. I'm working on a PiGRRL 2.0 kit and didn't want to use RetroPie.
Part of the kit uses a PiGRRL gamepad which effectively piggy backs on the GPIO pins that the AdaFruit TFT uses.
In the recalbox.conf file I had set controllers.gpio.enabled=1 assuming that this was needed to allow the PiGRRL gamepad to work properly.
Changing it back to 0 allowed the screen to work as expected.
# ------------ D2 - GPIO Controllers ------------ #
## GPIO Controllers
## enable controllers on GPIO with mk_arcarde_joystick_rpi (0,1)
controllers.gpio.enabled=0
Now I just need to figure out how to make the Gamepad work.
Gerard