At 25 years old I still hear this high pitched noise but it only seemed to plague aging, old, or cold CRT's. Some monitors I noticed just need a gentle tap on the side to stop the whine. Though its not as much of a bother that I can't get use to it after some usage. I mean I had to get use to it as a kid (wasn't until 2011 I got a 21 inch LCD monitor to replace my 17 inch samsung CRT)