Dave,
I am aware of the contrast setting but, it is worth trying again to see if I missed something I went out in the sunlight, although today is overcast, and moved the contrast up and down the scale to bring out the brightest screen and also tilted the radio screen up and down and find that doing the combination of the two makes it easier to see. The angle of the screen relative to my eyes seems to make a significant difference. I got my wife a Garmin GPS for Xmas and it sure seems to have nice bright and easy to read screen. I am building a GP Super Stearman ARF and it was sure nice to just tell the radio that I was going to have four ailerons and let it do the programming.
Howard