"Sorry, I don't know much about how that works Windows. I run Linux and don't come across those types of problems."

Which is true, and possible to say without being condescending. I'm not telling them to use Linux (which could be seen as arrogant), but I literally don't know how to help them and slightly nudging them towards the idea that their own choice in OS has led to the problem they are facing.

Not just grep, but cat too.

Contrary to the naysayers here, I think Bethesda has done a great job with DLC. Shivering Isles is bigger than most full $50 games (I am at 120 hours and counting), well worth the price to add more depth even to a ludicrously huge game like Oblivion (over 480 hours for me).

Likewise, when you consider other games Fallout 3 was a bargain when you consider cost, entertainment value, and time. Even more so compared to other mainstream forms of entertainment. If they'd release any of the Fallout3 DLC for the PS3 I'd buy some in a heartbeat, fully expecting them to be worthwhile as well.