I have 3 monitors connected to my PC. AMD Radeon R9 200 graphics card. Cables are such: DVI to DVI, HDMI to DVI and HDMI TO HDMI. This set up worked fine for me for couple of days. But then when I restarted PC and one DVI connected monitor was not working. I switched DVI cables with the other DVI monitor and it started to work again until today. Now again one monitor is not working. I played around with calbes and the problems seems to come from graphics card, because only one DVI monitor works at the time and it doesnt matter wich one or to which slot its connected.Any ideas what could be wrong?