I have bought probably over 100 tv shows and movies from itunes. I just recently downloaded the new update and now i just bought another show, and it keeps telling me that i have to authorize my computer? i click authorize and then it tells me that my computer has already been authorized and it still will not let my play the show. I have been using the same computer and itunes for a year and a half. I have already tried to deautherize my computer still no results. I cant stand the itunes store anymore!!!!!!!!