No I do not use that feature, as a matter of fact I just got home from Pa. and I was trying different things on my way home. I stopped every program I could, thinking that maybe there was some kinda conflict, didn't help. Seems as long as I am somewhere that I really need the GPS it has an unexpected error but as long as I am somewhere that I know where to turn and all it works like a charm.It stopped like 12 times in a 2 mile stretch, but as soon as i got on I-95 it worked fine from Washington,DC to North Carolina.
Sorry for getting long winded ... Johnny