The course starts by opening a new window. From our experience this can be an issue when using a Mac. We strongly recommend using Google Chrome instead of Safari. But, in case you want to proceed with Safari (MAC), please follow these steps to solve the problem.

Safari (Mac)

1. Click Safari and choose Preferences.
2. Go to the Privacy tab.
3. In the Cookies and website data section, uncheck Block all cookies.

Note: Also, make sure that Prevent cross-site tracking is unchecked.

Safari (iOS)

1. On your iPhone or iPad, use these setting

Alternatively you could do the course on a mobile device (smartphone or tablet)If all is right you should have received an email when you signed up with instructions to download and login to the App. The main advantage of using the App is that it also will work when you are offline and syncs when online again.