Very long time user of my Explorer when it was Delorme. I have encountered many problems recently. 1- I delete tracks on web based map multiple times yet they reappear. 2- Some tracks show me going due north for 18000 miles...still cannot permanently delete the tracks, 3- Earthmate App will not allow the track history to be deleted...and it does not translate properly onto the web based map....for instance last trip (as a test in a car) shows 53 miles of travel (it was about 11) max speed of 5.64 mph but average speed of 33.36 mph. Obviously makes no sense.