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- Nov 25, 2013
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- Your Mac's Specs
- Model Name: MacBook Pro Model Identifier: MacBookPro9,1 Processor Name: Intel Core i7 Processo
My Mac Workbook has developed an unstable video. The display will become 'jerky' and display heavy black vertical lines and/or gray areas. It might take a section of the display and make it blink in and out. I have runa diagnostic on the hardware and it comes back OK. It acts like something has gone wrong with the video drivers. Is there a way I can reload these drivers to correct the problem?