I've had my C2D MacBook Pro for a month now and it has recently started making the whining noises. I know I have good hearing and I can always hear the fan and other normal sounds like that coming from the machine, but what it is doing now is definitely not normal. It doesn't do it very often, and I have yet to establish a pattern for when it does make the noise, but it gradually gets louder once it starts to the point where people across the room could here it over the TV.
So far there's been nothing wrong with the machine performance-wise. I had a crappy Dell before that needed hardware replacements of some sort every 2-3 months, so I'm generally pretty good at noticing when something major is failing.
For now, since it's the end of term and I have exams, I am going to monitor the machine and try to see if I can find a cause for the whining/buzzing sound and call Apple after the holiday madness is over.
I'm not posting to complain, but rather so the information is out there that there are still some whine issues with these machines. In my particular case it is quite loud when it does happen and there is no way it can be mistaken for normal operating noises.
