Support kies stuck on downloading firmware upgrade

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http://androidforums.com – Hey. I have an International version of Galaxy S3, which I purchased in the US a while back. Today i received a message on kies that they finally released a firmware upgrade for my device, and so I started the upgrade process. The problem is that the "Downloading firmware upgrade components" window seems be be stuck on 0% and doing absolutely nothing (the longest I waited was about 45 mins). I tried restarting kies and starting it as an administrator.. every time I try, I get the same result. any ideas? (General)