When I pull up Device Manager, there is a yellow question mark next to the "Other devices" category. When I click on the + sign, there is a yellow question mark next to "PCI Device". I am not sure if that is consistent with no sound, or if that is something totally different.
After reinstalling Windows XP, I used the Intel Express Installer Driver CD to d/l and install all the drivers, at least I thought that was what would happen.
Any ideas? I am not sure I have provided you with all the information you need to help diagnose the problem. If not, let me know what I need to do and I will track it down.