Which version of the game are you playing?
That's very odd. I have not received any reports except this one of this bug and I am not able to reproduce it myself. I'm really not sure what to do about it.
While I can't tell if it would fix it, have you looked into updating your graphic card driver?It could potentially mess up games in general.
Hi, I also experienced this bug. After getting it a few times, it seems to only occur when you select mute on the start screen.
