I've tried switching out monitors, switching out cables, but nothing works. Every time I scroll in Firefox (63.x) or play youtube videos, my second monitor flickers. Not flickers to black, but just bands across the screen. This started happening after the latest Nvidia drivers were installed (416.94). This flickering happens ONLY using Firefox. Other apps, Chrome/Edge, do not have this problem. In fact, I had to switch back to Chrome because the flickering was very distracting in my peripheral vision. I want to switch BACK to Firefox, but can't until this issue is resolved. I know it's not hardware (I switched out everything except the video card). Firefox didn't have this behavior before driver 416.94. Please help me come back to Firefox!