Weird partial black line while playing full screen movies

Discussion in 'iMac' started by Doobz, Jun 7, 2015.

  1. Doobz macrumors newbie

    Jun 2, 2009
    I have a 27" iMac and recently, while playing HBONow shows/moves fullscreen, I get this weird partial horizontal black line in the video.

    It's definitely not my screen, because I don't see anything wrong with other apps and it doesn't show up when I play a movie on iTunes. I've tried playing the videos on Safari, Chrome, and Firefox and I get the same result.

    I've included a screenshot.
    Screen Shot 2015-06-07 at 8.01.15 PM.png

    Any ideas?
  2. webbill3000 macrumors newbie

    Jun 7, 2015
    I have the same thing. tried on Firefox and Safari. Netflix and other full screen apps work fine....

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