I finally got this installed on my computer. After booting I get around 8 little windows of errors. They all are 'System Extension can't be used' system extension '/System/Library/EXtensions/ALCinject.kex' try reinstalling it. The other errors similar to this are LaptopDisplay.kext, Apple AzaliaAudio.kext, NVinjectGo.kext, Natit.kext, IOHDAudioFamily.kext, Apple Azalia Controller.kext.

What do I do to correct this?

MY specs are down below!

NFORCE6M-A
NFORCE520LE
IDT HD 6-channel HD audio CODEC
Realtek 8111B Giga LAN
Nvidia 8400GS
AMD BE-2300
OCZ DDR2 800 Ram
Maxtor 320GB HD PATA

Before you do anything else try repairing permissions

yazyazoo just correct permissions for all of these files. that should help u

i'm having the same problem, and no sound or internet. how do i repair permissions?

either open disk util click on your hard drive in the right hand side window and click on verify permissions
or

sudo -s
"input your password"
/Volumes/"name of your hard drive"/System/Library/Extensions chown -R 0:0 *
/Volumes/"name of your hard drive"/System/Library/Extensions chmod -R 755 *

thanx lanxxx, anyways, i rapaired permissions, but the same errors keep on coming. the os does no detect any audio devises, and no modems at all. what should i do??

Tell us your specs and exactly what the problem is

well, the same problem yasyazoo had, when it starts a few errors come up, that Apple AzaliaAudio.kext, NVinjectGo.kext, Natit.kext, IOHDAudioFamily.kext, Apple Azalia Controller.kext. can't be used. and no ethernet card and sound detected.

specs are

amd athlon x2 4200 sse3
asus m2n-mx nforce430
4x 512 kingston memories (2gb)
sata 2 western digital 250gb hard