I hope you don't mind my pointing these out to you, but I am sure you want to make the best program possible and I hope I can help.
QUIZ IN 5.6.1 Grammar:
#1. Correct answer should be "Che Peccato"
#3. Expression used in making a complaint should be "Non sono contento"
#4. Question asks "how do you say," but never goes on to say what you are trying to say.
Looks like you have good case here of programers who aren't very familiar with the subject. Nevertheless you have a great overall program. I think it is wonderful that you are so responsive to your customers. Thanks for the tip about downloading Flash and using the Foxfire browser. Funny thing is that with my Visa system, the Grammar Sections Activities now show the answer, but the audio doesn't work. On my XP system it is just of opposite--go figure.
Thanks again for your help.
Some errors in quiz 5.6.1

colibri
June 28, 2009

Maria-DiLorenzi
June 29, 2009
Buon giorno and welcome again to The Rocket Italian forum!
Thanks for your post and for making me aware of the mistake. I apologize for the inconvenience. We are in the process of fixing the quiz. Please go back to the quiz in a short while and try it again.
For which it concerns the audio problem, I already pass the request to our technical team and they'll be back to you as soon as possible.
Thank you again and all the best for your Italian learning!
Romina
The Rocket Italian Team