Hi bobcpa, You can try re-installing the audio drivers for Vostro 1720 and check if it fixes the issue. You can download the driver from the following link: On the webpage, select the version of Windows installed on your computer and click on “Audio”. Download the driver by clicking on “Get Driver”. Follow the “Installation Instructions” to install it. You may also try reinstalling the copy of Dragon 12 after installing the audio drivers. Please reply to this message if you need further assistance.

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