I receive an iTunes error (err = -3259) after I download iOS 4.3.3. I am using Windows XP. I just installed the latest iTunes and my security suite is configured to allow iTunes.
I have seen suggestions that advised disabling my firewall, so I may try that.
If it is the firewall that is causing this issue, should not the error show before downloading a 650 MB file, and not after three hours of downloading said file?