Have you tried to boot into your last known good configuration, sometimes your hardware will return to working order. You can also try deleting all your sound devices and.. having your driver CD-RON available, restart your machine and reinstall your sound hardware. I have seen many times Windows XP downloads a driver upgrade that doesn't work but the sound system still seems to be functioning even though you don't hear any sound. I never upgrade a sound driver or a LAN driver if they are already working properly. If these fixes fail, you can disable the onboard sound and install another card. Howard Rubin The Computer Doctor Fortaleza, Brazil RE: Date: Thu, 22 Jan 2004 16:44:32 EST From: [log in to unmask] Subject: lost sound I have a Sony 1.7 GHz pentium running Windows XP home. Today while online I noticed the sound was not working. It worked when I got online but stopped working about 15 minutes later. I rebooted and still no sound. I tried new speakers but still no sound. All the sound stuff in hardware properties say it is working and has no conflicts. When I try to play a sound with Windows Media Player, it appears to be playing but no sound comes out of the speakers. I also tried plugging headphones into my speakers but no sound. I checked the volume controls and nothing is muted. Does anyone have any ideas what could be the problem? If the sound went bad, could it still show up in as working properly in device manager? I'm stumped. Gary South The NOSPIN Group Promotions is now offering Mandrake Linux or Red Hat Linux CD sets along with the OpenOffice CD... at a great price!!! http://freepctech.com/goodies/promotions.shtml