I use a Garmin GPSmap76 to plot underground pipelines. I have to upload the data to the USA1 network that uses Microsoft MapPoint. So far I have had no luck in doing this, despite following directions in MS help file. Has anyone else run into this problem? Can anyone direct me to the solution, which might be a "device driver" supplied by Garmin. (I asked Garmin about it. So far no answer.) Thanks.