Hello for alls!
I am an user of the macbook pro 17 (early2008), the model with the 8600 GT 512. I have the same problem.
The think of the question is that: The LED Screens don´t have inverter, the brightness is regulated by the power that the logic board provides to the screen. The think is that Leopard manage the brightness using other system than windows. That`s because in windows we have a noise that if we are in front of the macbook pro, in the right ear we listen a buzz low noise that in 50% of brightness is the most perceptible.
In Leopard is a sound that we not listen because is not "high noise".
This problem is in all macbooks screen, LCD incluyed but in that remplacing the inverter the sounds descends. But in that screens....
The most volume in that type of sound is in the LED Screens that are 17" and hi-res, because are bigger and have more leds, so, more leds, more noise.
We are waiting for an apple update of EFI that resolves this problem, but apple not response for this noise because they say that is only perceptible in windows.
That is the question. Is the same thing that the multitouch driver. Goes very bad, and produces BSOD in windows, blue screens, and only if we delete the applemtm.sys (the driver of the multitouch mouse) we can work finely. And why they don´t repair the driver? for the same question that the screen. They wish that windows works very very worse than mac Os (and that is true but...) and they wish we can´t use the multitouch capabilities in windows and the power management in windows...
I have gone to an apple centre, and all macbooks pro with this screen has the same problem, and the oldest models has the noise (but is slower)
I am spanish and i dont learn english very good, but i wait serve of help.
