for mine 8400GS it was

04000000 00000100 02000000 00000000 00000000

edit that in the nvinject.kext info.plist

right click on nvinject.kext --> show package contents, open Contents and copy info.plist to desktop
open it with plist editor and edit the NVCAP string from above
Copy it back to org location(will ask for admin pass) and set permissions to root:wheel / 755
after that do
sudo rm -R /System/Library/Extensions.mkext
sudo rm -R /System/Library/Extensions/Caches/

reboot and cross fingers

grtx ^fire^

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HomeHackintosh:
AMD Athlon64 X2 4400 :: ASRock ALiveNF5-eSATA2+ R3.0 :: Corsair 2GB DDR2-800 :: Gainward Geforce 8800GS PCI-E :: Maxtor 250GB SATA HD :: Audiotrak Maya 44 USB :: Phillips 22" 220AV TFT ::
Custom 10.5.5 Voodoo_Beta2 Kernel

Minimacbook:
Acer Aspire One A150X Netbook :: Intel Atom 1,6Ghz :: 1GB DDR2 :: Seagate 120GB SATA HD :: Acer 8,9" Crystal Bright TFT ::MSI Wind OSX 10.5.4 upgraded to 10.5.5 & Voodoo_Beta2 Kernel