I can't tell what browser you use but if I see this I google like this:
Disable Graphics Acceleration in Chrome.
When that works, it's a video driver issue but don't think for a minute the graphics card/chip maker fixed it. Sometimes you just have to turn this off.
Since a month, when I try to see a video on line, even in Facebook, the screen comes black. If is off line I can see it well. Could that be a VIRUS? I have installed Avast in my PC. Thanks for help.

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic