No any sound in Combat Arms...

[Fantomas1123]

Dear friendes...
Today, I install again the Coimbat Arms in my PC, but when I try to play the game is no any sound. Already uninstall / reinstall the game, but the problem continues. What should I do?

My system:
Intel Q9300
ASUS P5B-Plus
ATI Sapphire HD 4870
4 GB RAM
Creative Audigy 7.1

Thanks from Brazil.

Fantomas1123