one question.. i just got my HP w2228h 22" Monitor.. okay, the display is nice.
The scenario is like this,

1. when the pc is on, my monitor is not making any noises.
2. when i shutdown / sleep the pc, the monitor will make a screeching noise that is very faint if you're 1 meters away. if im sitting at the chair, the noise can be heard.
3. another thing is, i get headache when im near the cpu.