The case number that has been documented for this issue is 468613.
Are you having sound issues with just with the currently computer that you are using or with any of the computers that you connect to this board? Please make sure that you have the latest version of the ActivDriver installed which is version 5.10.15. This can be downloaded from http://www.prometheankb.com > Americas > English and search for article number 10902. Let us know if updating the drivers helps.
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