Quicktime not working

Discussion in 'OS X Mountain Lion (10.8)' started by babyj, Nov 3, 2012.

  1. babyj macrumors 6502a

    Aug 29, 2006
    My Macbook Pro wouldn't boot (grey screen, spinning circle) and I ended up reinstalling ML which fixed the problem. Except Quicktime is no longer playing any media files, giving an error message of "...could not be opened. An unknown error occurred (-101)".

    Tried deleting the Quicktime plist files but it didn't make any difference.

    Any ideas?


    Ignore that.

    Rebooting fixed it.
  2. miquee macrumors newbie

    Nov 25, 2011
    I had the same problem cause I didn't have soundcard drivers installed, after soundcard started working Quicktime started also...

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