I am a long way from genius. I hate that I can't figure this out, but maybe it's not me!? I like having my previous "trails" show up every time (meaning saved and viewable), but the only way I can figure out how to do that is go to menu and record every single trip as a new trail. Only thing I do that may be unusual is - I have to remove the unit from skiff for safe keeping (thus away from constant power source). Running the Navionics Lakes Chip, and that huge triple transducer - if that matters at all. I believe all are up to date, but are there firmware updates to the actual unit? If there is some menu setting, that is exactly what I am hoping for to resolve this. THANKS!