I originally posted this at http://www.318.com/TechJournal
Screen Sharing is a great enhancement to Leopard. The ability to control other Macs isn’t only available through third party applications any more. However, many administrators who are used to using Apple Remote Desktop will want some of the features they have become accustomed to, such as curtain mode, full screen, get clipboard, etc. So to obtain these features, the following command (all on one line) will unlock many of the buttons that have been disabled in Screen Sharing:
defaults write com.apple.ScreenSharing
'NSToolbar Configuration ControlToolbar' -dict-add 'TB Item Identifiers'
'(Scale,Control,Share,Curtain,Capture,FullScreen,GetClipboard,SendClipboard,Quality)'