I have been in Grizzleheim for a while now and everything was fine. However within the last few missions, every character I speak with has no audio (or voice over if you prefer). I'm not sure if it's just me and my audio files are corrupted or if it's a widespread problem. All other sound effects and such work just fine, and the only place this happens is in Grizzleheim.
I hope that an Admin will see this post and be able to shed some light on the issue.