Watching youtube on firefox sometimes cause my my screen to turn teal and starts, for a lack of better word, flashing violently , closing firefox fixes this, but once i get a screen flash, watching any youtube video after on firefox will causes the screen to start flashing again, and if i don't close firefox immediately, the flashing will stay even after i close firefox and i have to restart the computer to fix it. this seem to be only happening to firefox, as i can watch youtube with chorme fine even after i get a screen flash with firefox I run a dual monitor set up, the flashing seems to only affect the main display, so if i unplug the flashing one, the other one starts flashing the strangest part is that the flash seems to be physically affecting one of my monitors, if i leave the flashing on the monitor for 5ish minutes, the monitor will have a slight flicker, even when i disconnect it for the computer, leaving it overnight seems to fix it though. Some photos of this happening: https://www.dropbox.com/s/kb6nds7ig3hy7yt/DSC03024.png?dl=0 https://www.dropbox.com/s/bkzthyii03w9f3h/DSC03026.png?dl=0 https://www.dropbox.com/s/neafjynz1mk3q2u/DSC03029.png?dl=0 I run windows 8.1 ASUS R9 270 Graphic card and the lastest drivers that's slightly overclocked with ASUS GPU tweak and an noneoverclocked i7 4770k