I bought a DVD and inside was a code so that i could have a copy on iTunes. I typed the code in and everything and it started to download, but after a minute it said that there was an unknown error and that i should check that the connection to the network is active and that i should try again. How do i check the connection. I did read the article on this website about this problem, but i do not know how to configure those applications (firewall, web accelerators, ad filters, and virus protection software). I do not know how to do that. I am definitely not computer savy at all.