Have had a HB 998 for two years been a great unit, now at start up everything is normal until the view screen is suppose to pop up, but instead the unit screen suddenly turns black, can still see some faint underlying picture on screen. Haft turn on and turn off, or disconnect reconnect several times to get a normal view. When I get a good view, it will work and stay on, but if i turn the unit off again it starts with the same problem. How do I fix?
