I'm trying to set a Route for a motorcycle using mainly back roads. On quite a few roads there are two of the same roads with slightly different paths just off of each other. I am using the Navigator North America.
Have to say these cases seem very isolated and I'm not sure the developers know what's causing it. Many of us have asked to be able to display more than one map at once and it certainly isn't intended at the moment and affects only a few users, without seemingly a common thread. I wouldn't anticipate a fix anytime soon.
Once you get used to BC it's a nifty little program, although it would benefit from some Mapsource features, a better search method including postcodes comes immediately to mind :)
