Hi I've just recently built my new PC and found that my RX 480 from Sapphire won't display any picture on my Qnix model monitor. Just random vertical lines of colour. Yet if I use the same HDMI port for my older monitor it works every time. It's also how I am viewing this forum with atm. Now before I was using the same GPU on a older machine with the same drivers/cable and it was working fine on windows 10 64 pro. I've tried DDU to remove drivers and tried past versions, swapped cables around. I thought maybe the monitor has died on me but it works fine on my old pc through HDMI and DVI (old pc has 7970 Ghz GPU in it). PC specs (nothing is overclocked at the time being) i7 6700K Maxiumus VIII hero motherboard 16GB Corsair Ram Sapphire Rx 480 8GB Windows 10 pro. I'm at a loss at why it's refusing to work after working so well before on the same GPU.