Well now that jiggen's problem is resolved I could use some advice re: my 12" Gen 3 Lowrance. As soon as the advisory comes up with the Agree prompt in the lower right hand corner- the whole screen darkens to the point that I can barely see it and viewing ANYTHING on it is impossible. I have the brightness at 100% and have tried a hard reset. This is a new issue for this unit but I have long suffered flickering and freezing as well. Those I can live with but it's worthless with a dark screen. Any ideas? ( save the Garmin lectures Fabio)