Sound Card Shows Up In Device Manager But Is Not An Option For Playback

Hi,

I can see the soundcard in the device manager, it is enabled.  When I go to the sound properties area and try to select it as the playback device it is not there.  All that I can choose is Microsoft RDP Audio Driver.  I have installed the latest audio driver, chipset drivers, uninstalled and reinstalled the sound card, and even updated the BIOS.  Any thoughts?
nybeechpilotAsked:
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William ElliottSr Tech GuruCommented:
what type of computer? model number? serial number?
chances are there were several types of audio cards sold withthe brand of machine and the wrong one is installed.

my first suggestion would be to remove all audio devices from device manager, then reboot and see if it picks them up automatically.  if not, the above information would help us determine the issue
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nybeechpilotAuthor Commented:
I built the computer.  The motherboard is a Biostar P4M900-M4.  Here is a link to all the specs:

http://www.biostar-usa.com/mbdetails.asp?model=P4M900-M4

OS is XP Pro SP2
There is also a USB audio device plugged in that transmits audio wirelessly to another room to play audio on a stereo.  Both the onboard sound and this USB audio device were showing up in the sound options and working fine up until now. RCA makes the USB device. It is a Lyra Wireless 2.0.  Again they do show up in the device manager and are working but they do not show up in the Playback Device list under sound options.

Thanks
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William ElliottSr Tech GuruCommented:
this issue is normally caused by either faulty hardware, corrupted or wrong drivers.

silly question, but do they show up if you reboot?
i only ask, because my audio devices on one of my machines sometimes 'stops' working because i end task on explorer quite often.

since the last time it worked and now, have you
installed any software" or hardware? or made any configuration changes?

i'm guessing you have, but for the sake of arguments, have you removed, then reinstalled the hardware from devicemanager?

are there any splats in device manager?

if you try to play an audio device (w/out using the lyra) does any sound come out?
if not does it give you an error?

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