dock

Fix Incorrect Mac Dock Icon Badge Count

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Fairly often, my Mac OS X 10.8 Mountain Lion “Messages” app shows the wrong number of unread messages.

Sometimes I can make the badge update after double-clicking every contact in my buddy list. With a big list, that is not a practical solution.

Instead, I’ve found that these steps seem to work:

  1. Quit the problem app
  2. Open Applications/Utilities/Terminal and run the following command:
    killall Dock
  3. Launch the problem app

Mac OS X 10.6 Snow Leopard Disappearing Dock Icons

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I occasionally see one or two icons in my Mac OS X 10.6 Snow Leopard dock show up as completely transparent.  I can still click in that area to launch the application but that slot in the dock shows up empty.

I found a solution that brings the icons back (this could just be a temporary fix):

  1. Right-click the icon and choose Options – Show In Finder so that you can easily locate it in a future step.
  2. Drag the transparent icon away from the dock so that it turns into a puff of smoke.
  3. Open Applications – Utilities – Terminal then type “killall Dock” to restart the Dock
  4. From the window opened in step 1, drag the icon back into the dock where it was before