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I recently updated to Mavericks OS of my MacBook Pro 13" inch which was bought on October 2012. I am having blue colored lines and strange shapes all over the display. I dont know whether its hardware or software issue. The following images will reveal my issue.

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  • Do you see these anomalies all the time or when using specific applications? Did this start after upgrading to OS X 10.9?
    – Graham Miln
    Commented Feb 17, 2014 at 16:47
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    Do they appear if you ⇧-boot (Safe Mode)? Do they appear if you ⌘S-boot (Single User Mode)?
    – grg ♦
    Commented Feb 17, 2014 at 17:44
  • @GrahamMiln It comes and goes often. But when I am using Xcode(Its used to build iOS and Mac Apps), i'll get more and more lines all over display.
    – Vishnu
    Commented Feb 18, 2014 at 3:46
  • @grgarside i never tried those method.. Will try today and let u know.
    – Vishnu
    Commented Feb 18, 2014 at 3:47

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Could be graphics card issue, check my question Macbook pro checkered display, safeboot works

I ended up replacing the logic board.

P.S: Talk to customer relations instead of call center and ask for free service in case of hardware failure.

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