Just installed radeon 4650 on windows 7 64 bit on sound

can anyone help ive just installed radeon 4650 graphic card,sound work fine from hdmi but can not get surround speaker to work
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More about just installed radeon 4650 windows sound
  1. Have you installed latest graphics drivers & audio drivers

    For graphics driver download & install from here!
    ATI Catalyst™ 10.1 Suite for Windows 7 (64 bit)

    For audio, from here!

    Just download & install latest ATI HDMI audio drivers only! (2.39 not 2.41)
    ATI HDMI Audio Device R2.39

    Hope this helps!
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