i have been using the autochart software for about two years with no problems and now all of a sudden i'm having an issue. when i import the recorded data into the program and hit "map data", it shows all of the data i recorded for the day but when i click on "create map", it only maps a portion of the recorded data and the majority is gone. i assume since the data is showing when i hit "map data", that means the 898 unit is working fine. i haven't changed any settings or anything. any ideas?