Thanks for all the replies. I will try one of the anti-glare covers.
The screen brightness is not so much an issue, it is mainly total
reflection from inside the canopy. I have it mounted with a RAM mount
about 18 inches in front of me on the left side on the canopy rail.
Marc I do have the old one as well as a 3670 for sale. I agree, they
do have a better screen for use in the glider.

Tim