If you're experiencing sound problems, right-click the game's shortcut, select Properties, click Compatibility and try:
1) disabling the Compatibility mode before launching the game,
2) try different compatibility modes.
If this doesn't help, and you're running Windows XP, try different settings of your sound card's "Hardware acceleration" and "Sample rate conversion quality" (starting with the lowest setting of Hardware Acceleration).
To access those settings, go to your Control Panel, double-click "Sounds and Audio Devices", click the bottom "Advanced..." button and go into the "Performance" tab.