5.1 Mac Update, massive screen tearing

Mac Technical Support
Currently unplayable. As soon as I logged in the graphics would just spaz out, blindingly. I was lucky to be able to hit logout just by knowing where it should be on the screen.

Any Ideas?
Can you post your system specs so we can look at this?

Obtaining System Information
    1. Hold the 'Option' Key and choose System Profiler/Information from the Apple Menu.

    2. Copy the information from the following sections:
  • Hardware (remove the Serial Number line)
  • Graphics/Displays
  • Software (remove the Computer Name and User Name lines)

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Mac Technical || Sun – Thur, 11 AM – 8 PM CST
Need 1x1 help? https://battle.net/support/article/contact
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Does this happen when you enable vertical sync?

You can add this outside the game by going to /Applications/World of Warcraft/WTF and opening the config.wtf folder with TextEdit.

Add this line to the end:
SET gxVSync "1"
Now save the changes and try again.
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Mac Technical || Sun – Thur, 11 AM – 8 PM CST
Need 1x1 help? https://battle.net/support/article/contact
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Having the same issue, and I tried adding the the extra line of code.
Have you tried to reset your temp files?

Reset the temp files
    1. Navigate to /Applications/World of Warcraft/
    2. Delete the Cache folder.
    3. Move Interface and WTF to the Desktop.
    4. Launch WoW.

________________________________________________
Mac Technical || Sun – Thur, 11 AM – 8 PM CST
Need 1x1 help? https://battle.net/support/article/contact
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Can you take a screenshot of the issue, so I can escalate this to our team?
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Mac Technical || Sun – Thur, 11 AM – 8 PM CST
Need 1x1 help? https://battle.net/support/article/contact
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You can upload it to a photo sharing site like photobucket, imgur, tinypic, etc.
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Mac Technical || Sun – Thur, 11 AM – 8 PM CST
Need 1x1 help? https://battle.net/support/article/contact
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Nice :)
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Mac Technical || Sun – Thur, 11 AM – 8 PM CST
Need 1x1 help? https://battle.net/support/article/contact
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