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Huge barcode across display

Update:11-30Source: network consolidation
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I have a Macbook Pro. Suddenly when using Safari, about two thirds of the screen disintegrated to what looks like a huge barcode. Everything above it works fine, but I can't get rid of it to see what is underneath it. I can't even turn it off other than with the power button.

The Best Answer

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Welcome to Apple Discussions!
A good place to start might be with the Apple Hardware Test, as it could be some sort of a problem with the video chip. You will need to find the gray discs that came with your machine and boot off of Install Disc #1 by holding down "D" as you start up. Follow the instructions on the disc and the screen. If you get an error code, make a note of it and call Apple. If you are under warranty, whatever is wrong should be covered.
If you are not under warranty, please post back after running the AHT with the results.
Good luck!
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