I have a Lowrance x125 fish-finder that came with my boat and is only 2 yrs old. When I turn it off it stays off for a few seconds and turns back on and the screen "flashes" and makes it hard to see in low light conditions. The only way to keep it from flashing is to unplug the power. During the day I do not notice the flashing and it seems to work well otherwise. Customer service at Lowrance said to "send it in for a refurbished one for a 149 bucks." Do not really want to go that route. Has somebody experienced this or can somebody HELP??? thanks.