In Chrome, when I go fullscreen on YouTube videos I get a thin horizontal black line across all videos, about 2/3 of the way up the screen. It looks like this:
It isn't there when the video is reduced to normal size. It only happens in Chrome, not other browsers.
Then, on all Vimeo vids, when fullscreen I get letter \ pillar boxing around the vids. It looks like this
This happens on all Vimeo videos fullscreen in Chrome - the black bars disappear in normal size reduced screen. It isn't there in other browsers.
I'm running Win 7 64 bit. I'm using Chrome v 44.0.2403.155 (Official Build) m (64-bit)
What is causing this?