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" If you tell me the exact make and model number of your laptop, and the make and model number of your sound card (if you have a separate sound card, I can point you toward a 2nd option that is a proper solution that I found when I had this problem.

Everest says the sound card is a SigmaTel Audio and it's onboard.

Then under "PCI/PnP Audio" there's an "Intel 82801fb ICH6 - High Definition Audio Controller [B-2]" listed.

The motherboard is a Intel Pentium 4 521, 2800 Mhz (14 x200).

[see, I write this like I actually know what all of this means! I'm a GEEK!]

Thanks for your help...

You need to have the newest Universal Audio Architecture (UAA) High Definition Audio class driver for sigmatel,
http://downloadcenter.intel.com/download.aspx?url=/8658/eng/5.10.4647.4_V6_XP32_XP64_MCE.EXE&agr=N&ProductID=2068&DwnldId=8658&strOSs=45&OSFullName=Windows*%20XP%20Home%20Edition⟨=eng

1.download the drivers rfom link above
2.install drivers
3. restart pc
4. when you restart pc it might have a pop up say “new hardware found” and then list your audio,
5. select manually select where drivers are located, and you’ll need to find the directory these files are in:
6. move that pop up windows aside

7. Search for these files: ( you need to find which directory they are in)

Windows XP SP1

Date Time Version Size File name

12-Aug-2004 17:45 5.10.0.5011 137,728 Hdaudbus.sys
12-Aug-2004 17:45 5.10.0.5011 113,664 Hdaudio.sys
12-Aug-2004 17:45 5.10.0.5011 24,064 Hdaudprop.dll
12-Aug-2004 17:45 5.10.0.5011 5,120 Hdaudpropres.dll
12-Aug-2004 17:45 5.10.0.5011 61,952 Hdaudpropshortcut.exe
17-Mar-2004 23:05 9.0.0.3140 134,144 Mssap.dll
16-Mar-2004 01:41 5.1.2600.1364 135,040 Portcls.sys

you’ll need to select that directory in the pop up window that is asking you where you want to install the drivers for the new hardware.
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I think they are in c:/windows/system or c:/windows/system32, but not 100% sure, dealt with a similar situation last November.

This is a bit of a complex task, the Universal Audio Architecture (UAA) are a PITA to correctly install in the few instances I’ve had problems with them.