I recently worked on a Dell Inspiron 510M notebook, which came with Windows XP Home. I upgraded it to XP Pro, SP2, after which, the sound came garbled.

I already downloaded & installed the latest audio driver from Dell, to no avail.

I also had a problem with the USB driver initially, but was able to fix it after installing the USB 2.0 driver from Dell.

Funny thing is, I'm not getting any errors from the Device Manager.

Thanks for your help.