Blackdog--sorry you have to put up with Boris the Moron.
I just did another search, and it appears you can choose routing options in setup (page 127), but unlike other GPS units, I could find a way to choose this option at will, only in settings. Someone else might help us here.
I agree, I still could not find how to change the chosen route colors in 3d mode or the arrow cursor color? It might be in the book, but I have not seen it yet.