Hi, I just received my m18x today and I noticed that when I put a window in fullscreen, there is a line on the top. I don't know how to describe this, just look at the picture. My graphic cards are the dual hd 6970m.
Edit: I just tried to play a game in fullscreen mode (League of legends) and I don't get this line problem.
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why are you asking us to figure it out? You jsut got a brand new insanely expensive computer... call their tech support!