too dark for me, so I increase the brightness level and check the screen again. On some monitors the picture is not good at all with the zero contrast, so I then increase the contrast a little and start all over again. It's won't take a long time to adjust the monitor brightness. But then your monitor brightness setting will be optimised and your eyes will be happy. All the adjustments need to be done in normal light conditions i.e. not in the darkness, not under the direct sunlight conditions and preferably during the daylight. Sitting position. The sitting position is very important for a person's back. It is of double importance for a person working with the computer because people sometimes tend to spend a lot of time sitting in front of their pcs and if one has decided to do so, then at least he or she needs to do it properly. Sit properly and comfortably and leave the computer in normal mood, without pains, happy and satisfied with the work you've done. Sit uncomfortably and get pain, which can lead to many undesired illnesses and problems. So let's concentrate on how to sit correctly in front of the computer. There are couple of points here, which I'd like to emphasize: 1. Get the right chair You can't imagine how many computer chairs are on sale today, which are just horrible, uncomfortable, not possible to adjust and simply wrong in relation to a human's back. When choosing one,