I am using Basecamp 4.1.2 on a Macbook Pro running OS 10.8.3 with a GPSmap 60CSx, loaded with 24k topo and CN. I create route on Basecamp using the route tool and selecting several sequential points on the route. This route shows up beautifully on the laptop, following the road perfectly. When I upload this route to the 60CSx and select it from the Route page, the route shows straight lines from the points I selected, without the detail shown in Basecamp. The 60CSx map does not interpolate the path between the selected points, rather just connects them with a straight line.
I have tried turning off CN and topo alternately, without change.
Many thanks in advance for the help. I'm very frustrated by not being able to figure this out......ugh.https://forums.garmin.com/images/smilies/confused.png
Pete