I've had to complete countless office OH&S modules for work and one thing that always bugs me are the suggested guidelines for monitor height. They say that you should have the top of the monitor in line with your eyes and not above.
Surely these are from a time when <22" monitors were the norm and are now out of date. I'm using either 24" monitors at the office or 27" at home and I find that if I line the top of the monitor up with my eyes then my head is tilted downwards and I tend to hunch more leading to soreness in my neck and shoulders. I find having my screens so that my eyes are in line with the middle of the screen or slightly above is much more comfortable and it's much easier to keep better posture.
Am I an anomaly? What height do you find most comfortable?
Centre of screen at eye level.