The sound get screwd up..?

Level 3
Aug 29, 2007
I don't know if I'm posting this in the right place now, but it occurs during my cinematic anyways... If I have undead structures on the map, it sounds like they're being constructed the first thing that happens when I start the map and then after all units, combat and everything except the music echo’s... I hope you understand... Anyone know what's causing this strange echo? :confused: