I have a Lowrance HDS gen 1. That flips to the start up screen for no reason. I will just be running along everything fine then I am looking at the start up screen. It stays in that mode for awhile but eventually boots back up to whatever screen I was using. I have checked and rechecked all connections on the unit the structure scan module and the battery connects everything is tight. Is it just getting old or does someone have some magic for me. Thanks in advance.