If I try to start an exercise, it brings up the rectangular box just like it will get ready to start if you push the spacebar. However, it had a spinning icon in the middle of the box and it just spins. I closed down the browser and restarted the computer but this does not help.

Thank you for your message. We can not see any problem. On our side it works well with Chrome on Windows 7. Do you have problems with your internet connection? Can you provide us your Chrome version? Did it ever worked?

All the best from Berlin,
Your Tipp10 Team