Sound card issue

Help! I am stumped.

System:
Dell 8300 dimension, P4 3.0ghz, Windows XP SP2, 2G RAM, Nvidia 7800GS

Problem:
I thought my sound card died (SB Live!). Mic does not work. I do get sound though, but it is kinda wonky. Like I get general sounds and game sounds, but with video in Firefox = no sound. Trying to run MusicMatch Jukebox or Ventrilo causes them to crash or just not work (no mixer device available). When I try to use the sound control mixer it tells me there are no devices installed (or something along those lines). When I go to hardware manager it shows the sound card and says it is working properly.

If I go to Control Panel > Sound and Audio Devices
Under Volume: it says No Audio Device
Under Audio and Voice: the only device listed in the drop lists is "Modem #1"
BUT
when I go to hardware and properties of the sound card it says "this device is working properly.

I uninstalled the driver and reinstalled. No change.
I uninstalled the card, pulled it, reseated it, reinstalled the drivers. No change.
I pulled the card, removed the driver, put in a different sound card (Turlte Beach Riveria) and installed new card's drivers. No change.
I did a system restore to a point before I noticed any of these issues. No change.

Creative sound diagnostics gives me this:
http://www.teamir8.com/pictures/sound_diagnosis.jpg

I checked the BIOS and onboard sound is OFF.

Much appreciation for any help you can provide.

 

Have you checked Dell's faq's ?
Also is there a motherboard drivers/bios update for your Dell /
I have seen this solved by updating motherboard drivers/bios at times.

 

Problem seems to be resolved. Here is what I did:

• uninstall SB! Live sound card
• turned on the onboard card and installed drivers
• checked that sound, mic, etc. were working properly
• uninstalled onboard sound, turned of in BIOS
• reinstalled SAB Live card and drivers

So far so good.

 

That's the answer we all appreciate - It will help others who might have a similar problem -
Sound problems appear to be driver related, in almost all that I have seen.:dancer