I think it started happening ever since I watched a movie last night for the first time--that must have broke it in. Now, as you increase the brightness, the frequency and volume of the backlight squeal increases. If you're not sure if your monitor does this, turn the brightness to the highest, put your ear to the back grill, and press the power button to see if you hear a change.
I don't want to be stuck with the lowest brightness setting, and I'm also not sure if I want to return it since the next one might very well have this problem too.
I don't want to be stuck with the lowest brightness setting, and I'm also not sure if I want to return it since the next one might very well have this problem too.