It can't be the computer. I have purchased maybe 10 songs since I got it. For the last month, I can't get it to play. It wants me to sign in to authorize the song when I press on it. Which is a hassle because I have dial up. Then it wants me to download a new version 4.7 which I already had but downloaded anyway. But I have checked my harddrive and it seems to be in there. Now since I have been fooling with it, it says error 502 occured please try again! Apple won't answer any questions it says check website.