@ BigBadBen

Why dont you post your entire system configuration ?

First try installing latest Nvinstaller v.51 :http://scottdangel.com/blog/?page_id=20

Else try folowing


First remove previouly installed video Kexts.

Download Nvinstaller .41 (From the same site given above), do not install.

Download these patched Kext : http://rapidshare.com/files/120964256/8800_Mac.zip

Assuming you have installed either GFX string or Nvinject Kext (Do not install both). Add these given Kexts with the help of Kext Helper software.

Open the Nvinstaller .41 package with pacifist. go in to -- contents of macbookpro105->system->Library->Extensions drop down-> and select the following remaining files , rite clk on to them and clk "install at default location"

Geforce8xxxGLdriver.bundle
GeforceGA.plugin
GeforceVAdriver.bundle
IONDrvsupport.kext


After that rite clk on "Frameworks" folder and select install at default location.

Repair extensions permissions. Flush cache and all.

Reboot with -f

Let me know if it works