Portal White Lines?

Discussion in 'Mac and PC Games' started by markojug, Apr 8, 2011.

  1. markojug macrumors regular

    Mar 16, 2009
    In A House, Ontario, Canada
    So I was playing Portal the other day, and there is a white line across my screen that is a little annoying for me. Whenever I would hit a block against a wall, white lines would come out of the wall. When I look up, white lines pour out.

    Any Help?
  2. edddeduck macrumors 68020


    Mar 26, 2004
    Best idea is to contact Steam/Valve support for Portal they should know more than most about helping out.


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