Until now I he loved my experience with Duolingo. My french has improved significantly - thank you. But now you have introduced a system that repeatedly switches the keyboard layout to AZERTY almost every question. I have tendonitis and learned to use the Dvorak layout which significantly helps me. The constant switching not only causes me pain but is leading to numerous typos which, in turn, impacts my ability to use your app. Please at least give us the option of disabling this 'feature'.