i have installed the nvidia 256MB driver from IATKOS v4 for my NVIDIA GeForce 8400M GS.

i can change my resolution, but the problem is i cant play video files it is playing the sound but showing a black screen.

System Profile report on Graphics/Display

Graphics by NVIDIA:

Chipset Model: Graphics by NVIDIA
Type: Display
Bus: PCIe
PCIe Lane Width: x16
VRAM (Total): 256 MB
Vendor: NVIDIA (0x10de)
Device ID: 0x0427
Revision ID: 0x00a1
ROM Revision: NVinject 0.2.1
Displays:
Display:
Resolution: 1280 x 800
Depth: 32-bit Color
Core Image: Software
Main Display: Yes
Mirror: Off
Online: Yes
Quartz Extreme: Not Supported
Display Connector:
Status: No display connected

Pls help me

bump

are you having the right codec for Quick Time Player??
Trying playing your Videos in VLC Player.

It's not a codec problem.

He needs to get Core Image and Quartz Extreme working.

I'm guessing a missing device ID in NVINject.kext