Another broken Fallout 3 download? It looks like it’s finally time for Team Fallout to crack open some of those boring Six Sigma books.

In an odd combination of poor quality assurance and truth in advertising, Bethesda’s new Broken Steel DLC is apparently causing problems for PC and 360 users. PC users are reporting a “cryptographic message is not formatted correctly” error, and 360 users are having difficulty activating the new-and-improved Project Purity mission. In short, you’ll probably want to hold off on the DLC download until Bethesda creates a fix.

Stop snickering, PS3 owners.