http://www.amazon.com/gp/help/custom...deId=200529700
There are some bug fixes for 3.0.2 to 3.0.3, not sure about from 3.0.1
Basically you download the correct firmware and copy it you root directory on the Kindle, then go to the home screen, press the menu key, and select "Settings." Press the menu key again, and then select "Update Your Kindle."
Wait while it does it's thing and you should be all set!