Originally Posted by fjarvis
There was also a strange transparent grey shadow in the middle of the screen the other day - not sure what that is, but it's not a mark on the surface of the screen. I always remove the plotter and keep it in my house, so it's unlikely to be moisture ingress.
My old Lowrance GlobalMap developed a "fogging" over time. The Canadian service depot explained that it was caused by exposure to acid rain! It took about 3 years to get to the point of rendering the screen unreadable. Each time, Lowrance replaced the unit under their extended warranty.
I don't know if this is the same or not... do you have acid rain over there?
Lowrance tells me that they have changed the formulation of their lens material and it shouldn't be a problem in the future. I hope that this is true as I have replaced the old unit with a LCX-25C.