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Macbook Pro (10.8.3) doing weird things!!!

463 Views 8 Replies Latest reply: May 10, 2013 6:55 AM by Linc Davis RSS
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May 9, 2013 7:53 AM

Last week my Macbook Pro (10.8.3) started behaving very strange... applications would not open (sometimes they would after a restart), I was consistently getting "error code -50", mail was also doing strange things, sometimes after a reboot it would stay on Grey Screen with Apple and spinning wheel, I would then have to reboot in Safe Mode then reboot again... I have regular backups via Time Machine... any advice welcome

MacBook Pro, OS X Mountain Lion (10.8.3)
  • pjdube Level 3 Level 3 (830 points)
    Currently Being Moderated
    May 9, 2013 8:24 AM (in response to Steve_events)

    Can you remember if you downloaded any apps prior to all this trouble? Are you using any anti-virus software?

  • Lark.Landon Level 1 Level 1 (35 points)
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    May 9, 2013 9:05 AM (in response to Steve_events)

    Open Disk utility and check for permissions issues and also check the disk itself and perform any repairs if needed. Viruses/Malware are extremely rare.

  • Linc Davis Level 10 Level 10 (108,150 points)
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    May 9, 2013 8:58 PM (in response to Steve_events)

    If you have more than one user account, these instructions must be carried out as an administrator.


    Triple-click anywhere in the line below to select it:

    syslog -k Sender kernel -k Message CSeq "I/O error" | tail | open -f -a TextEdit

    Copy the selected text to the Clipboard (command-C).


    Launch the Terminal application in any of the following ways:


    ☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)


    ☞ In the Finder, select Go Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.


    ☞ Open LaunchPad. Click Utilities, then Terminal in the icon grid.


    Paste into the Terminal window (command-V).


    The command may take a noticeable amount of time to run. Wait for a new line ending in a dollar sign (“$”) to appear.


    A TextEdit window will open with the output of the command. Post the contents of that window, if any — the text, please, not a screenshot.

  • Lark.Landon Level 1 Level 1 (35 points)
    Currently Being Moderated
    May 10, 2013 5:50 AM (in response to Linc Davis)

    Let me go ahead and consult my senior advisor, Linc, and see what he has to say. He's a frikkin' genius.

  • Linc Davis Level 10 Level 10 (108,150 points)
    Currently Being Moderated
    May 10, 2013 6:55 AM (in response to Steve_events)

    The boot drive is failing, or you have some other hardware fault.

    Make a "Genius" appointment at an Apple Store.

    Back up all data on the internal drive(s) before you hand over your computer to anyone. If privacy is a concern, erase the data partition(s) with the option to write zeros* (do this only if you have at least two complete, independent backups, and you know how to restore to an empty drive from any of them.) Don’t erase the recovery partition, if present.

    Keeping your confidential data secure during hardware repair

    *An SSD doesn't need to be zeroed.


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