Just discovered this Discussion Page on my laptop. I usually practice on my iPad.
I answered a question today translating from Spanish to English and duolingo said I was incorrect. I am sure that I was correct. Pity I did not record what it was because I was sitting in the car at the time. I'll make sure to do that the next time. Other than that, I love the program. When you answer a question incorrectly, duolingo is more forgiving than Rosetta Stone. Rosetta Stone won't let you advance unless you answer correctly, especially if you miss an accent on a word. Very frustrating.
Thanks again for the free program. I have recommended it to many of my friends.