3G with IOS4 Under GENERAL:NETWORK:INTERNET TETHERING Here is the issue. Most of the time the INTERNET TETHERING just sits there thinking. It's supposed to give you the option to Set Up Internet Tethering but most of the time my phone gets stuck which causes the phone to slow down significantly. Suggestions? I have reinstalled the OS twice. Once with the same update from my iTunes account and once from an admin account.