This may be old news, but we've found that the 2.0 upgrade of the navigation DVD seems to perform worse in some ways than the original. As a for instance, if the route takes us from the 101 South to the 5 (Santa Ana) freeway, when hitting the interchange the navigation gets briefly turned around and says to make a legal U turn! This was not happening in the 1.0 version. Anyone else run into these sorts of issues, and if so, is there a fix?
