Most people got rid of their problems by updating their drivers. In addition, most people can run AH2 smooth and, like me, with even higher FPS than AH1.
So, double check, if you really have the newest drivers for your onboard sound (check not only mainboard manufacturer, but also chipset manufacturer), but that might be not enough. Onboard sound is very often a source of problems, especially the older onboard soundchips. You might have to upgrade to a soundcard and buy something like a soundblaster live, which are pretty cheap now.
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Running a Hercules Gamesurround Muse XL soundcard w/ updated drivers. It is not onboard sound. I did upgrade my system anyway. See system specs above. I have plenty of HP for AHII. I would be convinced that the problem is my hardware/software if the problems existed in AH1 or any other application, but IT ONLY HAPPENS in AH2.

thanks for the input. I hope I can figure it out soon.
