Hi Geogranny I came in to CFB Kingston from Verona this AM, with my GPS on all the time. I drive a '95 Saturn (350 thousand K on it - whooo hoo) and have a Magellan 315 (purchased in 99, new software in '01)... it showed to within 1 Km the same speed as the car did all the way in. Out of curiosity, what make of car and gps are you using? DG Lucas (Choo Choo Boy) Draco Dormiens Nunquam Titillandus ------------------------------------------------------------ Kingston Area Geocachers mailing list //www.freelists.org/webpage/kag