Warhammer 40,000: Eternal Crusade

Warhammer 40,000: Eternal Crusade

No Sound! Please help!
Yesterday I was playing Eternal Crusade and everything was fine. Today I started it and I have no sound anymore. In the time between, I cleanuped my computer a little bit: uninstalled VS 2010, DX9 SDK and some minor stuff. All other games still have sound. I already reinstalled EC and deleteted the config folder. But it still the same: no music, no sound.

Does anyone have any idea, what I could do to fix this?