Screen Weirdness-anyone seen this B4?

Discussion in 'Mac Basics and Help' started by 3rdpath, Nov 3, 2008.

  1. 3rdpath macrumors 68000

    3rdpath

    Joined:
    Jan 7, 2002
    Location:
    2nd star on the right and straight till morning
    #1
    my GF's mac( Mac Pro quad 2.66 intel, 4mgs ram, leopard, ATI XT1900) is doing strange stuff- lotsa freezes, lines across screen( see screenshot), beachballs of death and a weird instant sleep mode, actually more like a coma, where it won't wake up( whole screen goes to black).

    we just got it back from a local mac repair shop where they replaced the logic board...and it's still acting up. the monitor is a new LG 24"-so i don't think it's an issue.

    anyone dealt with a similar situation or seen the screen weirdness before?

    just would like to have a bit more info when i take it back in for repair...the shop seems to be taking the path of least resistance as far as repairs go.

    thanks for the assistance.

    edit: sorry the pic is an EV map-it was just the first thing i opened and got the dreaded lines...
     

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  2. wrldwzrd89 macrumors G5

    wrldwzrd89

    Joined:
    Jun 6, 2003
    Location:
    Solon, OH
    #2
    Sounds like your ATI XT1900 is acting up - either that, or something's seriously wrong with your Quartz Extreme.
     

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