
I've a 550 and have had no problems plotting routes on mapsource and then transferring them via the usb cable until recently. Any route I download shows on the Zumo that it's been received and asks to I want to manage it (import it) which I then do. It shows that I've been successful but when I go to look for it in 'routes' there's no sign of it. I have no problem downloading POI or finding them once they're in the GPS.