I recently did some housecleaning with my pc and now the audio isn't working. I had shut off some services, not windows audio service. I also used adaware programs, of which only a few low threat items were listed. Overall the system is pretty clean. But for some reason the audio stopped working. I have updated the creative soundblaster live drivers just in case. I patched them as well. Still nothing so I uninstalled the audio. I then reinstalled it and also moved it into different pci slots. Windows picks it up each time and everything seems to work fine. If I run Windows Media Player, it acts like it's playing the music. If I run system sounds through audio in the control panel, they act like they play fine. But still no sound coming from the speakers. I switched the audio card with another. It also installed fine but still no sound. I then tested the speakers on another system and they had sound on that system. I just don't know what could have gone wrong. I went back and reenabled all services just in case there was a dependency for Windows Audio that was keeping it from working. I just don't understand how the light on the speaker that shows its getting audio from another system works fine, but hooking it up to this one the green light doesn't come on. It's like the signal isn't being transmitted out from Windows even though the audio programs are saying it is. I also checked audio properties in the taskbar to make sure that for audio playback that the audio card is the selected device. I also checked to make sure that the audio is not muted. I have patched the system and updated all the drivers for all the hardware. It's a Dell 8100. Everything was working fine. There is one unknown device but I believe it to be part of the help and support feature that DELL had for this series of systems. But that was always present before. I don't know if there is something internal to how windows handles audio that needs to be reinstalled. I really don't want to reinstall windows. =( Thanks in advance.