Keep getting message
It looks like you don't have access privileges to view this course ...
any help appreciated?
Garmin Connect is at connect.garmin.com/.../ . What do you see when you open that page? Can you see the login form? The Operating System of your Mac does not matter as long as you use a recent version of a browser. It the default browser on your mac (most likely Safari) does not work, install Chrome, Opera, Firefox, or another one.
Thanks again. I'll try that and let you know how I get on. I did think I'd used chrome but unsure. So will download again and try. When I put my details in on the login page, and click open,a new window opens but is blank with just the garmin connect url in address bar.
You can try force-reloading the page (Shift-F5), or clearing the cache and cookies of the browser. You can also try accessing directly another page, different than the home page. For example, try clicking this link connect.garmin.com/.../gear , to see whether it makes any difference. You can also try another browser, or an alternative internet connection