Tool to restart the Dock
DockRestarter is a handy AppleScript that relaunches the Mac OS X Dock when it freezes.
You can use DockRestarter as a standalone application or as an AppleScript menu item.
The Script Menu Item (SMI) Installer will activate the Script menu in the menu bar and install the DockRestarter AppleScript in the folder "Dock Scripts".
Requirements: Mac OS X 10.0 or newer