I am having a problem with a customers computer where the mic port is funtioning as the audio out. The line in and the line out do not play and sound I do not know if any of the ports can be used as a mic port. One other sound issue is that, the volume (in windows) will turn itself to max volume after a reboot.

Sounds like Realtek onboard audio, but how 'bout letting us know what motherboard or system you're working on. What does Device Manager identify the sound controller as? Skip

Yea, Realtek HD sound has programmable ports. You need the Realtek HD audio manager software installed in order to program it. That software may already be installed. Look for an Orange speaker icon in the tray by the clock. Connecting anything to any of the ports will open the configuration screen.

I think this is the audio controller and the mother board chipset I don't actually have access to the computer at the moment. Audio Adapter VIA AC'97 Enhanced Audio Controller Motherboard Chipset VIA VT8377 Apollo KT400 I did have a some for audio managment software installed and it didn't reconize that the cable was plugged in any of the ports.

Asus motherboard? Read the manual about audio port configuration.

Same goes for MSI manufactured boards. Realtek Sound Manager allows you to configure the motherboard audio ports. The drivers and Realtek application should be on the motherboard cd. Skip

Jam: is there a place i could download a pdf of the manuel since the manuel is unavailible. Skipcox: do you know of a good place where I could download the driver and Realtek application, or will i have to try to find it where ever I can. Thanks for the help.