I have had issues in the past with my sound card and games. Try to set the hardware acceleration lower in (depending on your OS, but should be close to this) "settings", "control panel", "multimedia", "Audio" tab, playback "advanced properties" button, and the "performance" tab. You'll see two sliders, one being hardware acceleration, the other being sample rate conversion quality. If they are both to the right, you may try moving them left and giving it a try. I would leave the Sample rate conversion quality alone til you try the hardware acceleration, because it doesn't seem to make as much difference. This may or may not work, as you have a diff card than I do, but it may be worth a try. hope this helps.