I have a pretty standard Acer desktop (I guess a predecessor of the X5900 model).
when playing mp3 / radio / youtube clips, the sound level is changing WITHIN the clip, highly annoying.
in the case of an mp3, the same mp3 will play at a constant sound level on my iPod, so clearly an issue with the computer.
problem existed under vista, I upgraded to windows 7 and have the same issue.
I guess it might be soundcard-related, so updated the drivers, no luck neither.
any idea ?