Call Ubisoft and make a complaint with customer service! not enough people have!
I've called and told them that I had tried the game in two different xbox's and had traded the disc in for a replacement and told them that others I knew that had the game did not experience the problem until the latest xbox dashbord update. If everyone on here made the call they will contact microsoft and it will be fixed.
The customer service people told me they won't believe stuff just written on the internet and they also said they had not heard many complaints about Tin Tin on the phone.
I just put the number in my phone and called when I had the time
Ubisoft (tintin) 919-460-9778