Yeah, I mean the newest RealTek drivers. Sorry, I think I fogot we were talking about a add on card here! Sorry

Have you installed the latest of the cards drivers? Have you tried older ones?

What system are you using? Some cards just never work on certain boards as well so you might just have to use onboard until you can get a different card. Have you emailed the company to ask if it is compatible? Gigabyte or Audigy?