I have had this card for about a year now with no problems. Today during game computer crashed (black screen but still had sound) Re-booted but when starting Windows 10 got four columns of horizontal lines. It then re-booted itself and came up the same. after a couple of times it decided that it needed a repair after which I managed to get logged in in safe mode. I disabled the card in device manager and managed to re-boot into normal Windows. Did a complete new install of Nvidia drivers and re-started only to have the same problem. Am now running with the card disabled in Device Manager but have started to get lines of coloured pixels across the screen. Any ideas how I can fix this.