Prevent keyboard viewer from displaying Whenever I plug my MacBook into my external keyboard at work, the keyboard viewer window automatically opens up.

How do I prevent the keyboard viewer from automatically showing?

If possible, I'd like to keep the input sources menu bar item visible (the little American flag on the menu bar).

EDIT: i'm on mountain lion, i've got the viewer un-checked, and i'm still getting the viewer:
This problem hasn’t bothered me for some time, but I remember it used to occur (though I couldn’t pinpoint the exact circumstances). I have tried two different things:


After invoking the Keyboard Viewer, don’t close it by clicking the red close window button, but by clicking Hide Keyboard Viewer on the Input Menu in the menu bar.
If that doesn’t help, try deleting the Keyboard Viewer preference file: ~/Library/Preferences/com.apple.KeyboardViewer.plist.