Railworks America

Well, I installed the MCSA route, and it runs fine. I have all the free roam scenarios working, but I have no sound on any of them? I have sound on all other routes, and yes my sound is on for those routes also. I get no errors or anything letting me know why, it's just like it is on mute. I also have downloaded the five packages needed from trainsim. I like the route and would like to have sound with it. Anyone else have this problem?