Intel 82801BA/BAM AC'97 Audio Controller won't start

Hello,

I recently installed Windows XP Pro on my Dell Inspiron 2500 notebook (with Intel Inside Pentium III).  My computer used to be able to play music; now it doesn't play any sounds at all! Itunes looks like it's playing songs just fine - It's just that nothing comes out of the built-in notebook speakers.

When I go to Sounds and Audio Devices in the Control Panel, then click on Intel 82801BA/BAM AC'97 Audio Controller, it says:

Device Properties
Manufacturer: Intel
Location: PCI bus 0, device 31, function 5
Device status: This device cannot start (Code 10).

[end error message]

Now the device is "enabled," but still not working properly.  I tried to use the Hardware Update Wizard to "update the driver" using the Dell software CD I got with my computer. But it says that the "Wizard could not find a better match for your hardware than the software you currently have installed." I also tried the MS Windows website, the Dell website, and the Intel website trying to find updates to this driver. Unfortunately I've had no luck at all.  I tried emailing Intel but got an irrelevant autoreply.

Might anyone out there know what's going on? Again, I'm trying to get my "Intel 82801BA/BAM AC'97 Audio Controller" working for my Windows XP.

Thanks so much.