The sound's not working? Is this just in a few specific areas or the entire game? If the entire game, check to see if you've got some headphones plugged in, then check your volume mixer to see if the game is specifically muted (or if your computer is muted entirely). If it's none of those try opening the menu in-game then going to the options menu and see if any of the volume bars there are at 0. If it's specific areas in the game please let me know which and/or where and I'll look into it!
Glad to hear that you're otherwise enjoying the game! We hope that part continues at least!