Alright need help with a HB999. The lines that show up on my gps showing me where ive been sometimes I can fish one day go back the next and they're still there. Sometimes the lines from the day b4 are gone. How do I make them stay on the screen an how do I get rid of them? Also is it possible to save the track lines that are on the screen at the end of the day. I know theres a way to save track lines but I thought you had to press save tack b4 you start making it. Hope this make since an thx for any help