Strange, I have a newish macbook pro with these specs - Hardware Overview:
Model Name: MacBook Pro
Model Identifier: MacBookPro5,3
Processor Name: Intel Core 2 Duo
Processor Speed: 2.66 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 3 MB
Memory: 4 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MBP53.00AC.B03
SMC Version (system): 1.48f2
Serial Number (system): W894913P642
Hardware UUID: B3DE840A-6937-536B-AFA7-C48D6E83FD80
Sudden Motion Sensor:
State: Enabled
and these are the two graphics cards I have installed
NVIDIA GeForce 9600M GT
NVIDIA GeForce 9400M
I just swapped over to the lower specified NVIDIA GeForce 9400M and it seems to be working.
Should it work on the NVIDIA GeForce 9600M GT?