i was helping my friend w/ his new mac, & every time we try to download apps in itunes, this message pops up. we followed the instructions & checked the said box, but we still get the same message. i aslo tried using my itunes account, but i get the same thing. we tried restarting, reinstalling itunes & using disk utility's verify & repair permissions, but we still get the same result. kinda frustrating din on my part because i was constantly convincing him to switch to mac & now i have no idea on how to solve this hehe. thanks!