nuvi 760

just looked at that on mine and it shows a tiny map of the last few 100 meters (yep - I know you can zoom out) but how do you tell it to take you back or even move the map back along the route you've travelled?

I assume by on/off in this case you mean to display track on/off as power on/off doesn't get rid of the track. Had so many blue track lines on mine it became confusing after a few days...also lets the wife know where you have been. To the best of my knowledge your right that you can't set the reverse track as a route...you can only just turn around and follow the blue line. The garmin instruction manual is dam useless on this aspect.

thanks for all the inof to everyone, and on that point you raised about all the blue lines, can you reset or delate them altogether?

Yep you can send them to your pc using mapsource or just delete them by clearing the trip log. I am pretty impressed with this unit. Have a look at doug and dusty's site for lots of info for this model.

http://www.doug-and-dusty.id.au/gps.htm