2K Games informed us that due to a assembly error French tech tree posters have snuck into some of the North American Civilization IV boxes. If you are only of the unlucky owners of such a game, and ne parlez pas frenchie, you do not have to return your game to the store but instead you can
go online and fill out a form to get an English version sent your way, for free of course. If you are too antsy to wait for it, 2K Games has also made a downloadable .pdf version available so you can be on your merry way until the mailman brings you the proper poster.