Released October 24, 2011 / 2.2, 2.4, or 2.5 GHz Quad-core Intel Core i7 Processor

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MacBook Pro screen glitchy on regular boot but not recovery?


So about 3 weeks ago I noticed my Mac shutting off and crashing with yellow horizontal lines and very blurry apple logo upon REGULAR boot... however when i boot into recovery or boot into any other form except Mac osx it works perfectly. I looked online and found that it could be a "Panic kernel" what im trying to find out is if my Logic board is bad or if its just software...

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If it's working OK in Safe Mode, but not in regular mode, it's software issues. First thing I would do is install and run a good "Paid For" anti-virus program like Symantecs' Endpoint Protection.

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Would avast antivirus work instead? its free and still picks up viruses pretty well.


@captainsnowball It's possible.


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