Motorola Motonav :: When Turned It On It Showed Location To Be Almost A Mile (by Road) From Actual?

I went thru the set up. I immediately noticed a difference in performance, when I turned it on it showed my location to be almost a mile (by road) from my actual location, probably a 1/2 mile as the crow flies. I turned it back on a couple of different times in the next few hours but it never did find the street I live on. The battery was low so I hoped that a good charging would get it to function better. The next day was some better, at least it found my street but still placed me 140 yards away. No panic yet, Friday will be the true test. Friday morning I loading in my addresses and found the optimization key thanks to my experience with the Garmin 1450. Bingo, route optimized! Looking forward to the trip now.However, the trip was a huge disappointment. This 765 did recognize waypoint correctly but the unit kept going to the blue screen with moto's advertisement . I would have to start the trip all over again and delete the waypoint I was at, it would add that back to the route.I'd guess it happened at least 20 times durng the around 3 1/2 hours I used it. Most of time I would be at a waypoint (but not always) and I'd get back to the car and it would be playing it's happy tune. I'm glad it sounded happy cause sure wasn't. The other 765 I had did not behave in this manner.