in CRT monitors beam of several tens of times per second consistently runs through all points of the screen, recreating the image.The number of such "races" is called refresh rate.The lower the frequency, the more noticeable to the human eye becomes flickering screen - a side effect of the update image.Such flicker significantly increases fatigue when working with your computer, so you must get rid of it.
If you are running Windows XP, then right-click on the desktop background image, select from the drop context menu "Properties".In the Display Properties window, you need the tab "Options" - click on it and click on "Advanced" to open the settings window monitor and graphics card.
Click the "Monitor" in the drop down list "Refresh rate", select the appropriate value.If the box that says "Hide modes that this monitor can not display" stamp set, you can choose any frequency placed on the list.Microsoft recommends that the refresh rate is not less than 75 Hz.For monitors th
at do not use a cathode ray tube, it is not critical as the update monitor happening on a different principle.Therefore, in the drop-down list LCD-monitors tend to be on the list has only one meaning.
Press «OK» button and, if the application asks you to confirm the change in frequency, then press "Yes" - such confirmation is required only for the first use of the above parameters and is designed to keep you from choosing the wrong potentially hazardousHealth monitor .
If you have a later version of the operating system (Windows Vista or Windows 7), then open the Control Panel, selecting the appropriate command in the main menu on the button "Start".Click the "Appearance and Personalization", then click on "Personalization" and click on the link "Adjusting the display".In the window, as in running Windows XP, there is a button "Advanced", click on that panel opens the settings monitor and graphics card.Set the update frequency in the same manner as described in the previous two steps.