Every time I connect to Xbox live, it says "A system update is required to sign in to xbox live, but the update is currently unavailable. If the problem persist, visit [ Register or Signin to view external links. ] . This problem has not been fixed. I went to Xbox.com /support for help but everything they said to do has not fixed the problem. Im not sure why this is happening because at least 30 minutes before it started saying this message.... it was working perfectly without any problems. Please help, Any suggestions on what i can do to fix this?