Sound problems in Arma 1
In case you experience sound problems in Arma 1 or no sound at all, please try this:
- Create a system restore point, just in case:
http://windows.microsoft.com/en-US/windows7/Create-a-restore-point - Open Windows Control Panel, go to Hardware and Sound --> Sound.
- Delete all sound playback devices except the default one (usually the speakers).
- Try running the game again.