Mac Pro + Windows XP = No Audio/No sound device detected.

I have a Mac Pro 2.8x8 and installed Windows XP.
Applications tell me: "No sound device deteced."
Under Control Panel> System> Hardware> Device Manager I get yellow questionmarks next to:
1. Audio Device on High Definition Audio Bus
2. SM Bus Controller
3. Video Controller (VGA Compatible)
I have run the Windows Apple Software Update, nothing came up, I'm up-to-date.
I've run out of options, and I've checked the forums but get no exact hit.
Any help is greatly appreciated!!!!!
Graham

Download ReakTek audio drivers.
To really make good use of Mac Pro, Windows 7 Pro 64-bit.

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Message was edited by: Gaunja

Mac Pro + Windows XP = No Audio/No sound device detected.

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