I purchased a navnet vx2 chart plotter almost a year ago, local furuno dealer installed. The problem I am having is the chart screen flashes white and black poke a dots on all lower scale settings from .25 miles to 8 miles. I have talked to c- map and they deny the problem, my dealer has talked to furuno techs and they say they are working on the problem. This has been going on for almost a year now, the flashing screen is very anoying to say the least, plus you can't see anything on the srcreen, no markers, no channels, nothing but flashing screen. I feel I have been very patient, but enough is enough. I understand others are having this problem in the Gulf. Question here is does anyone know the problem, can it be fixed or do I need to return the product?