Hi all! After upgrading the RAM of a computer, there's a strange error. The monitor works for a minute or so and then looses backlight, I believe. It's namely possible to see some vague contours of the image on the screen, but it's almost black. The graphics card is not an external one so the memory is taken from the RAM, which is why I believe there might be an issue. I tried using another screen for half an hour and it worked perfectly. For now there's a quick solution. I can simply turn the power of the monitor off and then again and then it works for a minute or so. If anybody can help it would be great!