Thanks for the update, I'll grab it and test it ASAP. I'll also change the FOV back to 75 in the INI and see if it helps - I forgot you had change the way you handled that stuff.
What do you mean by "Steam-compatible?" The Doom and Quake source ports don't do anything special with Steam - you just need the data files that you downloaded through Steam, and you put them in a directory where the source ports can access them. Same with this Quake 3 mod.
Well, I know that there are patches with Quake 1 and Quake 2 someone put together which not only work when installed in the Steam directory, but actually cause other apps like Steam, Xfire, Raptr etc. to log the game time and show in-game status properly, despite using a different executable. For example, I've got Quake 1 running DarkPlaces on Steam, but it shows up as just Quake, and it displays in my friends list as such; I don't have to copy files around and lose out on various Steam features.
Also, is there any downside to copying over the original Quake 3 files, or will that cause problems when not running your modded IOQuake3?