Does the voice navigation in Navigon drive anyone else crazy? Every time I am on a highway and an interchange in approaching, the voice commands tells me to keep to the left, which is quite obvious as I am clearly staying on the highway. So more or less every 10 miles I am told to keep to left (sometimes to the right, depending on the exit) for the entire time I'm on the highway. As you might imagine this gets very irritating. Is there a way to limit the voice commands or is muting my only option? All I would like, is for it to tell me once I get on the highway which exit I need to take.