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I don't know about the recent trilogy disc, but the original game disc came with the Pipboy screensaver for Windows, and it still works just fine. I'm surprised that it's not included it in the game-extras.
Yeah, outside of the Fallout Bible and soundtrack, I found the extras to be pretty sparse, as well. An "Art" folder with five pictures? That's pretty weak, there is more way more art in just the manual, for instance.