I am having no success on "transferring" the file from "The Ultimate Big Duelie Ride Thru Vt, Nh, Me & Nb Canada" from map source to my Zumo 660. I've dragged the file into map source,and can view it fine,but when I transfer it it only takes a split second to do it instead of the usual time it should take. After that I check it in my gps and it's not there? Is it possible that I can see it in map source,but it's not there to transfer? I'm stumped-can anyone help?