gray screen during start-up

Discussion in 'MacBook Pro' started by mbp150, Jul 18, 2013.

  1. mbp150 macrumors newbie

    Joined:
    May 31, 2013
    #1
    Hi,

    It has occurred twice already. The gray screen with the folder symbol with question mark. Also, a gray screen happened a few times. it happened a few days after i installed chameleon. trim was not enabled.

    What is the common case of the gray screen with folder and question mark and also the purely gray screen?

    Thanks!
     
  2. mbp150 thread starter macrumors newbie

    Joined:
    May 31, 2013

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