Recently, in attempting to find a route from Norfolk,VA to Hinesville, GA, my 540XXL would plan a route, display it, then recycle to recalculate it over and over. This happened after I first cleared mt recent destinations. My way around this problem was to restore my device from its earlier save. Then, establish a route to a closer location [on the way to Savannah] with a shorter distance. Anyone else have a similar problem? Was it caused by the routing running out of memory?