Please go to this link and expand the audio tab and download your audio driver from here. http://support.dell.com/support/downloads/...anConsent=False
Please un-install any audio drivers you currently have installed, then install the one you downloaded from the Dell web site.
Please let me know if this driver fixed your audio issue, if not, then we may be looking at a failing hard drive.
In laptops, it is sometimes hard to tell where the noise is coming from.
This site might be helpful in diagnosing hard drive noises. http://datacent.com/hard_drive_sounds.php
Edited by MrBruce1959, 19 August 2010 - 02:19 PM.