What Operating System are you using there SR-71, and what folder do you have your Silent Hunter 4 installed in? What other mods, if any, are you using (those sometimes affect the Commands.cfg)? Ooops! forgot to ask: does the game run fine without the voice commands? Also, big thing: which version of SH4 do you have? v1.3, v1.4 or v1.5 (Uboats), and is it steam, or dvd, or some other download?... A mind is a terrible thing to lose...