Recently upgraded to the 2610 - works great! Use MapSource City Navigator to identify maps, create routes and waypoints and transfer them to the 2610 via USB. But, when I transfer them to a Compact Flash in the card reader, only the maps are identified as transferable. And even then, when I put the CF in the 2610, the 2610 does not recognize the maps. Basically, unless I transfer directly to-from the 2610, certain data (routes, waypoints, tracks) do not transfer. What am I doing wrong?