So what else doesn't work on 7x5?

In my last post "765t Calculations" i would say that setting the Garmin Route Preference to "less Fuel" won't work as alandb pointed out why. Useless feature. The second one that eludes me is "Last Position" which Garmin explains in "Find Yourself, Your Car" In their support area it tells you how to use it. Bin there done that. It don't work. Shows the car on the map, but doesn't acknowledge that i am moving. That's frustrating for me, maybe some one can help me here? Even set it to pedestrian.

Thanks
Claudius