Roads to Safe Places

Let me think, I remember something... we first started with the WW's car Navi, and we had the problem that we always seemed to be rather off. Then we found something in one of the forums or other that the way of displaying/showing the coordinates had something to do with it, becasue there were different kinds of doing it. We both don't remember what it was, unfortunately, or how it was called, but afterwards it was much easier. Still, the GPS device I then got was much easier to use, because the display is also much more easier to read.
Can you ask somebody, perhaps at a local GC "Stammtisch", for help?

Among my favourite caches are Earth Caches, because they brought us already to so many special places.