Virtually new iMac gets stuck turning on

Discussion in 'iMac' started by Glenavon Kate, May 17, 2012.

  1. Glenavon Kate macrumors newbie

    May 15, 2012
    I have a 4 day old iMac which was professionally installed and has worked fine for 4 days. Today I agreed to a software update and when it tried to restart it got stuck. Kept cycling between blank screen and half blank screen. I turned power off and disconnected external hard drives and started up again. The apple sign comes up and that little sound and a noise from the drive. But it goes into a half black half grey screen then back to the apple sign and on and on. Tried three times.
    Please help!!!
    I had just bought Aperture online and spent 5 hours renaming my 800 iPhoto events with a date coding.

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