Disable Dock Bouncing in Mac OS X
The bouncing Dock icons are a nice GUI feature but for some people they’re just really annoying. You can disable the Dock icon bounce notifications in Mac OS X by using the command line, so launch Terminal and enter the following:
Disable Dock Bouncing in OS X:
defaults write com.apple.dock no-bouncing -bool TRUE
Hit return, then enter the following command to restart the Dock:
Hit return again for changes to take effect.
Re-enable Dock bouncing for Mac OS X by entering these commands:
defaults write com.apple.dock no-bouncing -bool FALSE
Note that these commands don’t just disable the launch bounce animation, it disables all bouncing from the icons within the Dock, so iTunes, iChat, etc, will no longer bounce to notify you of an event going on in that application. If you only want to disable the opening Dock animation you can simply turn off animation within the Dock preferences by unchecking the ‘Animate Opening Applications’ option.