Thanks for writing the guide. My kids and I will play tomorrow. I have had the same problem with other games when the Xbox is online and multiple achievements unlock at the end of a level while the game is trying to autosave. It is as if the machine cannot handle multiple actions outside of the game (showing multiple Achievement Unlocked windows, displaying the autosave, and starting to cache to next load screen. Anyway, thanks for the heads up. We will take all the precautions from the beginning and post if that works.