I think you probably got early version of the Worldnavigator software. I had the same problem when I got it originally. They updated me and now I am happy. I think they rushed a bit to get it on the market with it but they did update me by now 2 times and the last update working just fine. The...
I finally took a big step and got the WorldNav 7 inch display unit.
It is a very nice device. The voice is excellent and instructions are very clear. I had recently trip to NYC and I could see all the restricted roads on the display. They are marked in pink color.
I would say it save my you...
I called TeleType, they use Tele Atlas Logistics maps specifically designed for commercial truckers, they do not use Google. Apparently this week, they released Hazmat routing too.