I've been having a couple of problems with EditVoicepack XL running on FSX: Steam Edition. All was well until I had to do a full re-install due to some corrupt scenery data - now I've freshly re-installed everything and updated the voicepacl, the ATC doesn't seem to be working. I can request IFR clearance from ATC but I can get no further. Looking at some other threads in here, it may be due to the USEnglishBig.gvp file being corrupt, but as I am running the Steam edition (my original boxed FSX no longer readable) I have no way of retrieving the original .gvp file from the disc.
Am I doomed to go through another full reinstall or is there another way around the issue?