That's weird. Does it do it consistently or was is just a one-time thing? Also, I forgot you were already on my list; I assumed you didn't have me because you were just buying L4D I guess.
It's discontinued, but another group picked up where they left off. It's called "The Sith Lords Restored Content Mod" and it's in a finished state now. You can get it here.
Thanks! I couldn't remember the name of the anime it came from... and it's another thing I have to watch besides Angel Beats after I finish B Gata H Kei.