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I upgraded to 10.7.4 and my dock on the bottom (with no enhancements) received this light/shadow box effect on startup. (It used to have no background.) I don't seen an option to remove it—is this a bug or a permanent change, and how can I easily revert it?


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up vote 5 down vote accepted

Try this:

  1. Launch from /Applications/Utilities/
  2. Type defaults write no-glass -boolean NO and press return.
  3. Type killall Dock and press return.
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