There is a standard data format now for GPS called NEMA or something similar. This is straight ASCII text. My guess would be your Garmin just dumps this data straight down the serial cable. Depending on your skill level, I'll bet a shell script or Perl script could handle this task. Look up NEMA GPS in Google and see if you don't get a few ideas. I'm at work right now and generally just lurk, but have tinkered a bit with GPS data in an old HP handheld. Parsing the data is not at all complicated if you have any programming experience. If you don't and I can understand that, you still might want to look at seeing if you can redirect the input from the rs232 port on your computer into a file and look at it in vi or your preferred editor. John Warner