CLASS!!...pay attention... :-)
to get the nuvi 500 trails/files into your computer, you need a usb-to-mini usb cable (not incl.) and the basecamp software available for free @ garmin.com. connect nuvi, open basecamp, click "receive from gps". it adds the gps files to the "my collection" area on the left. click the one you want to view, they are named by date by default.
i would love to attach a .gpx file for you to experiment with, but uploads here seem to be limited to graphic formats-any hints on how to do that on this forum? bueller? ...anyone? ...anyone?
so we will settle for a screenshot of what it looks like. if you had the file, after installing basecamp just double click the .gpx file to load and view. bunch of dots on a blank map---not much you say...if you open the file while your nuvi 500 gps is connected, and wait long enough to load its resident map into basecamp, it looks like my second screenshot with the topo features and you can adjust the angle of view.
for my last trick, right click the RZRride file and select "open in google earth". you obviously need this installed beforehand, and this is also free software @ google. the third screenshot is the route with google's topo maps. you can see my route that i colored in yellow. above the player bar in the upper left, you can click the little blue icon with the play arrow, and it will animate the route just as i drove it! you can adjust the speed of playback so your all day ride only takes 30 seconds to demonstrate. pretty cool!
if your nuvi 500 is still connected, you can click "send to gps" and have my trail route in your nuvi too!
THERE WILL BE A TEST!!! (insert evil teacher laugh and a pink floyd song) Class dismissed....
UPDATE!--Here's a link to the .GPX file
thanks to hoser for hosting this on his site...