1. Install the RtCW 1.41 patch. 2. Copy the contents of the 'main' directory on PC wolfenstein install over to your Mac wolf directory. I chose not to copy over existing files. 3. Run game. Even your PC key is copied over! Single player works fine. Some mods (notably shrub) kill the app in multiplayer. I think the game assumes it is running on a PC and tries to install mods. ??? I am going to investigate UT2k3.