Have you tried uninstalling the device in Device Manager? I would uninstall then reboot and let XP install the driver.
If you have integrated audio, check in the bios to see that it is enabled.
If you have a pci sound card, open the case and reseat the card in the slot.
Best of luck
Hello! I have a Compaq 5102US Presario computer with Windows XP. For some odd reason, I went to play a song from Itunes and found that I have no sound. The file plays, but no sound is coming from my speakers. There are also no system sounds either. I have checked the drivers, volume control and made sure that the speakers on plugged in correctly. However, I still can't hear anything. I even tried to plug in headphones and still can't hear anything. I have tried the troubleshooting approach with device manager, but all the drivers seem to be working properly. Can anybody help? Thanks!