The operating system for this computer is Windows XP Professional Version 2002.? It uses an onboard sound chip that's attached to the motherboard.? There is no sound from PC speakers or headphones, no matter which jack they're plugged into.? The following settings are observed: Device Manager - default device is "NVIDIA(R) nForce Audio Codec Interface,"?Device Usage says "Use this device (enable)"?and "This device is working properly," and Conflicting Device List says "No conflicts." ?The NVIDIA(R) nForce Audio Codec Interface Properties - Device Volume is set to "High."? Advanced settings show Master Volume, Wave, SPDIF, and MIDI sliders?at maximum, Aux, VIdeo, and Microphone parameters are set to mute, the CD Audio slider is?up to?about 75%. Speaker setup - "Desktop stereo speakers." Two versions of JAWS are installed on this computer - JAWS 8.0.422U (used for everything except Sibelius) and JAWS 7.10.500U (used when running SIbelius Speaking).? The JAWS 8 Manage Application Settings show only "sonarpdr" as being checked; "Default" and "Hot Spot Clicker" are not checked.??Changing this setting to "Enable All"?made no?difference,?still no sound, so I changed it back to the way it was. I ran the sound device troubleshooter again - system sounds are not audible, volume controls are all OK, speakers are connected correctly, and the device is using signed device drivers. Switching the default audio device to M-Audio Audiophile, which is connected via a USB port,?allows JAWS, internet, and other sound to use?the music production system?normally used specifically for Sonar. Nick has an old sound card lying around, and when I left yesterday his folks were going to try plugging that in to see if it would work, but the driver disk for it is lost, so we weren't sure that would fly.? At this point, I'm considering doing a driver "Roll Back." The speakers themselves, which plug in to an AC outlet, do produce clicking/buzzing sounds when the speaker cable jack is tapped on.? We were going to double-check them by plugging them into a different computer, but haven't tried that yet. I'm about out of ideas on this.? Any help you could offer will be greatly appreciated.? Thanks Brian Packard -----Original Message----- From: Phil Muir <ddots@xxxxxxxxxxxx> To: ddots-l@xxxxxxxxxxxxx Sent: Fri, 9 Jan 2009 4:09 pm Subject: [ddots-l] Re: Computer speakers quit working Some questions.? You say that you went through the sound system settings.? What are you using for Jaws?? Are you using an onboard sound chip that is on the motherboard?? Is this sound chip enabled in the bios?? What opperating system are you running on the PC? Regards, Phil Muir ? P J Muir Productions, Music And Audio Production Telephone: US (615) 713-2021? UK+44-1747-821-794 Mobile: UK +44-7968-136-246 E-mail: info@xxxxxxxxxxxx URL: www.philmuir.com/ ----- Original Message ----- From: briantunes@xxxxxxx To: ddots-l@xxxxxxxxxxxxx Sent: Friday, January 09, 2009 11:24 PM Subject: [ddots-l] Computer speakers quit working My client, Nick Baker,?recently had a new computer case put on?his PC, and suddenly we're getting no sound from the PC speakers, which he uses for the system, JAWS, internet, and media player?audio. The speakers hooked to the M-Audio Audiophile still work fine for his Caketalking project audio, so we've?got JAWS?speaking through these for now, but working on projects is troublesome this way. We checked and double-checked all connections, went through the device manager for his?sound system settings, ran the troubleshooter, checked connections both inside and out again, restored the system to before the installation of the case, checked the system volume to make sure it didn't somehow get muted, etc. - still no sound from the PC speakers.? The speakers have power, the green power light is on, and we do hear the expected clicking sound when tapping on the end of the speaker jack.? Same sound card, same cables, same everything, except it's a brand new box.?? Everything else with the computer works fine, and it's a nice brand new case.? How could changing the computer case suddenly cause the PC speakers to quit producing sound?? What more can we do to troubleshoot this? Brian Packard A Good Credit Score is 700 or Above. See yours in just 2 easy steps!