I decided to start a new thread to make it easy to find. Here you'll find instructions to change/fix Snow Leopard Exposé to relative sizes (just like 10.5) and runs smoother. ====================================== Instructions: 1 - Download the fixed Dock.app HERE. Extract to Desktop. 2 - Create a new folder in desktop called OldDock. 3 - Open terminal and (changing username) type: sudo chown -R root /Users/USER/Desktop/Dock.app type your password if necessary sudo chgrp -R wheel /Users/USER/Desktop/Dock.app Now copy/paste everything. Don't forget to change to your username: sudo killall Dock && \ sudo mv /System/Library/CoreServices/Dock.app /Users/USER/Desktop/OldDock/ && \ sudo mv /Users/USER/Desktop/Dock.app /System/Library/CoreServices/ Restart and Enjoy! ====================================== To revert, just put the dock.app inside OldDock folder in Desktop and repeat everything. Thanks to Hamis92 for figure it out. Thanks to klaxamazoo for sending me the Snow Leopard Beta Dock.app. Thanks to deltaiscain for providing the updated (A380) dock.app.