I moaned about the backlight in the review bit of the site. I have a silent system, and wasn't expecting any noise. I work in the dark at night, lurking in my pit writing programs. The monitor was way too birght, and the buzz that appeared below 75% brightness was very loud in my particular circumstances. I've now got the 2053BW and it is silent across all brightnesses. I googled and found a few others had mentioned the noise. I wonder if only some of them get it...