My friend has no internet and asked me to download the new maps for Black Ops for him. He gave me his hard drive and I used his account, his money and my connection to download the maps. So far, so good.
I returned his hard drive, he took it and his xbox to another friends house, he went online with his account and used the maps. So far, so still good.
He went home and was unable to access the maps. Thinking it was because there was no internet access, we came back to mine and tested with the internet on and off - both scenarios worked fine.
What have we done wrong and how can we fix it?