i have just recently lost all sound when i go to control panel and sound and audio devices it tell me there is no audio device. i have a built in sound card and have tried reinstalling the drivers for it. in the bios the audio chips is enabled any help would be great.
You could also go into control panel, add new hardware and see whether your audio system is shown with a yellow exclamation mark against it - if so it may well need drivers - if it indicates it is working properly but isn't then it may have failed or as stated by Maj above got itself in a tizz which you might be able to sort using system retore. If it still does not work after all this but is reported working via device manager try a pci sound card
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