King,

It may be that your DSDT just has functions defined for Windows, especially since Linux guys also had problems.

Have you talked to or contacted the people at OSXCORES? They have patched BIOSes for OSX:

M50SV AS207ASUS

M50V as209
ASUS

I'm not sure what fixes they have made, but they do custom work too. See:
http://www.osxcores.site50.net/services.htm

Perhaps they can help.
-u

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MacBook Pro - have allergy to nickel in the aluminum casing. So my kid gets an expensive toy!

Gateway MX 8738 - Retail, vanilla Snow Leopard 10.6.2 (thanks kizwan!) with Chameleon RC4, modified DSDT. Upgraded to Core 2 CPU (easy to do). Upgraded to 640GB drive. Everything but SD card working. Minor niggles. GMA950 with QE/CI and *no* artifacts.

iMac (luxo/lamp) G4 with Tiger.