John, Thanx for the reply. There is nothing using the port. I have a feeling it JUST WON'T WORK with the SpotTrak Pro. I'm gonna try a USB -> Serial adapter (shot in the dark). I'm thinking of getting a Magellan Explorist XL - Bad Eyes..Big Screen.... Do you know if there is a HCL for MapPoint? MAgellan won't tell me nuthin - I was also looking at a Garmin 76 but don't know if it will work either. Thanx again for the reply...Mike