[REG] OpenGL issues on MacBook Pro running 10.6 Cocoa build - no graphics shown on qtdemo and others

When running qtdemo.app or overpainting.app and some others I am getting no graphics just totally white on the GUI. Some other apps like hellogl.app show corrupted graphics or corrupted graphics when first opened. This is a regression as it has previously worked in 4.6.0

NVIDIA GeForce 9400M:

Chipset Model: NVIDIA GeForce 9400M
Type: GPU
Bus: PCI
VRAM (Total): 256 MB
Vendor: NVIDIA (0x10de)
Device ID: 0x0863
Revision ID: 0x00b1
ROM Revision: 3436
gMux Version: 1.7.10
Displays:
Color LCD:
Resolution: 1920 x 1200
Pixel Depth: 32-Bit Color (ARGB8888)
Main Display: Yes
Mirror: Off
Online: Yes
Built-In: Yes
Display Connector:
Status: No Display Connected

Hardware Overview:

Model Name: MacBook Pro
Model Identifier: MacBookPro5,2
Processor Name: Intel Core 2 Duo
Processor Speed: 3.06 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 6 MB
Memory: 4 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MBP52.008E.B05
SMC Version (system): 1.42f4
Serial Number (system): W893120T8YB
Hardware UUID: B3E941A5-09A8-5DF7-9FC6-A1B5D5FE3273
Sudden Motion Sensor:
State: Enabled

System Software Overview:

System Version: Mac OS X 10.6.2 (10C540)
Kernel Version: Darwin 10.2.0
Boot Volume: Macintosh HD
Boot Mode: Normal
Computer Name: Daron's MacBook Pro
User Name: Daron Andrew Edie (edie)
Secure Virtual Memory: Enabled
64-bit Kernel and Extensions: No
Time since boot: 20:13