After changing OS XP to Win 8/8.1 I have no sound. I have downloaded all drivers possible and worked with driver software for my Realtek sound card, but still no sound. Windows 8 just will not support my sound card. I been looking at your USB sound cards and I don't know if this would work and allow me to listen to music and movies on my pc. Which one would you subject and what procedures would I have to make to succeed.