Surprise, Fallout 3's New DLC Is BrokenS

Seems that Fallout 3's latest piece of trouble-plagued downloadable content, Broken Steel, has launched broken. Least, it is on PC. Shocking, I know.

A ton of people keen enough to install the game as soon as it went live this morning have been met with the following message:

Not a cryptographic message or the cryptographic message is not formatted correctly. (Exception from HRESULT: 0x8009200D)

And then the thing won't work. Bethesda say they're looking into it, but, well, as someone who hasn't been able to play Fallout 3 on PC at all (it just won't stop freezing on the menu screen, regardless of updates), this is all getting a bit depressing.

[Bethesda]