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  1. #1

    Member Since
    Sep 09, 2008
    screen has vertical lines
    Sorry not very literate, my Imac screen has two blue line running vertically. I can't find out what they are or how to get rid of them. can someone help, please.

  2. #2

    Member Since
    Nov 18, 2008
    bump on this G4 iMac has a single yellow line, about 0.5mm wide running vertically down the screen.

    Any clues? Turning off & on doesnt cure it.

  3. #3
    Google is your friend

    vertical line iMac - Google Search

    Vertical lines on an iMac display are usually indicative of a video card problem; with most iMacs this also means a logic board problem since few have a discrete video card...

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