Here are a couple of pictures of what is happening with my nav.
This first picture is showing in the upper left corner that I should be making a right turn in 100ft onto Iowa String Rd. However, if you look at the map (which is showing my current position correctly), it correctly indicates that my next turn is indeed in 100ft, but it's a left turn and not onto Iowa String Rd. The Iowa String Rd. turn will be the following turn.
This next picture shows that I am on Iowa String Rd. The upper left of the nav indicates that my destination is ahead in 400ft. But again, the map shows that I clearly need to make a right turn in 400ft, then (I know) my destination is about one mile ahead.
I don't think the engineers intend that the nav work this way. Or am I nuts?