The battery on my Nuvi 660 was weak and so I ordered a replacement and installed it. The unit was working fine. The battery replacement may or may not be the cause of my problem, but I mention it in case it is related. My Nuvi works fine, but now the screen is washed out and more difficult to see. Otherwise everything seems normal. I used it on a trip from CA to AZ over the weekend. It was plugged into the car's DC socket. Sometime during the trip, the screen returned to normal brightness, but now it's back to a faded washed out screen. Any ideas?
Rick