I have a new Garmin 800, but I have been using a wide variety of Garmin sports products for years. (I am a triathlete.)
Using the "modern" connect.garmin.com and Garmin Express, I am able to sync activities to my account from the Edge (and my other devices). For the first time since the switch, I tried to download a course to my 800 yesterday. Despite many of my usual tricks I could not get this to work.
I am using very recent versions of all software: Mac OS 10.9.2, Safari/Firefox/Chrome, Garmin Express 3.1.5
When I switched back to using the "classic" mode in connect.garmin.com, I was able to download the course without any trouble. However, this workaround will probably not be supported indefinitely. Another workaround, namely just exporting the crs file to my desktop and then manually moving it to the Edge [such as you might do from mapmyride.com] did not seem possible.
Is this a known bug? Something that is going to be fixed? Or a problem that is unique to me?
Thanks,
William