I just took a 1500 mile trip, I did not use any routes but when I wanted to see a larger map area I would zoom out to see more. Within 30 seconds the zoom would return to the lower level only showing about a mile or two. I wanted to see a larger area. I have look through the manual and online and can't find a fix. Am I doing something wrong or is that just the nature of the beast? Wish I bought a Garmin.