My monitor keeps going blank/blank. I turn it off by the button and on again, and it works for a few secs!?
Your monitor’s refresh rate is how many images it displays each second. For instance, when you move the mouse to the right, your monitor displays an image of the mouse in one spot, then an image of the mouse a tiny bit to the right, then another image of the mouse a little bit further to the right, and so on. Most monitors display about 75 hertz, that’s 75 images a second (it’s actually 75 images per process cycle but that’s around a second for most computers.) If your monitor refresh rate is lower than 75 hertz, your monitor might flicker, which can make your eyes tired after prolonged use. The flicker is especially noticeable with CRT monitors (the big, old monitors). Higher refresh rates mean less flickering. So, to minimize the amount of flickering on your computer screen, you should set your refresh rate as high as possible. To change your refresh-rate, go to Display Properties by right clicking on your desktop and clicking “Properties” or by going to the Control Panel and opening
