When trying to upgrade my iPhone running iOS 4.1 to 4.2, iTunes displays the error message saying:
There was a problem downloading the software for the iPhone "[Username]'s iPhone". You do not have enough access privileges for this operation.
I kept trying the upgrade process repeatedly, but with no luck. Everything else, including app and music downloads, works fine. I'm running iTunes 10 on MacOS 10.6. What do I do?