I am attempting to add in some new sounds (the hornet sound effects from the Americas campaign) and I have run into a few snags. Whenever I delete the SFX.dat and SFX.idx and put in my SFX folder with all of the files in it, it generates a blank file. This happens whether or not I am using a mod folder. I tried manually generating the idx with Vercingetorix's extractor, but the newly generated SFX files are wiped clean by the game every time I start it up. Any ideas?