Display problem?

Discussion in 'iMac' started by junyp, Mar 25, 2008.

  1. junyp macrumors newbie

    Mar 25, 2008
    Hi, i'm Juny

    I just bought a imac Alu 20" 2.4GHz Intel Core 2 Duo a few months ago. I love it but i'm a new mac user. Now i have a problem with my display or graphics card i dont know. I made a screenshot and a photo to explain my problem.

    The first picture is a screenshot and it looks normal.

    The second picture i took with my cell and thats how i view the screen.

    As you can see i got some weird black/gray lines on the dark part of the wallpaper and some icons. The rest looks fine e.g Windows etc. but only some images give me some weird lines.

    I installed windows and linux on the mac and the problem remaind, it worked fine before, and sometimes it will switch back to normal for a couple of hours but then i get the weird lines again.

    Sorry for my bad english.

    Gr. Juny
  2. junyp thread starter macrumors newbie

    Mar 25, 2008
  3. ewilson6 macrumors 6502

    Nov 30, 2006
    goto system preferences. click on display. set colors to millions instead of thousands.

  4. junyp thread starter macrumors newbie

    Mar 25, 2008
  5. vansouza macrumors 68000


    Mar 28, 2006
    West Plains, MO USA Earth
    Do you have external speakers near the screen? And is there an Apple store close by so you can take it in in case you have to do that?

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