I have an iMac with the current version of iTunes running. There are 3 user accounts on the machine, mine (Admin), the wife, and son. iTunes works as it should for myself and my wife. My son's iTunes works fine except it won't access the iTunes store. I have restarted iTunes, restarted the machine, deleted and reinstalled iTunes, and I can't solve the issue. Again, everything works just fine on all three accounts, except when trying to access the iTunes store on my son's account. When I try to access the iTune store on my son's account, I get the "Accessing iTunes Store" message, then the swirly lines starts and then after a few minutes I get either an Error-4 or Error-50 message. Can anyone help? Thanks.