I`ve installed Zethiroth`s 10.5.2 rev2 on my PC:
AMD Athlon(tm) 64 X2 Dual Core Processor 3800+
MB Asus A8N SLI SE (with nForce4)
Integrated Audio 0x005910de (ALC850)

I`ve modified AppleAC97AudioIntelICH.kext so my dev id 0x005910de is now there.
And now I have working audio... For microphone only! I have no sound on output or line-out. Only the input level (System preferences - Sound - Input) is now reacting on me (on my voice or other microphone sounds), but no sounds in output channel (there IS the "AC97 Audio (PCM)" line on System prefs-Sount-Output, there IS the output volume control in menu bar, but no sounds at all)

How do I fix that?