sudo rm -rf /var/db/RemoteManagement
sudo rm /Library/Preferences/com.apple.RemoteDesktop.plist rm ~/Library/Preferences/com.apple.RemoteDesktop.plist sudo rm -r /Library/Application\ Support/Apple/Remote\ Desktop/ rm -r ~/Library/Application\ Support/Remote\ Desktop/sudo rm -rf /System/Library/CoreServices/Menu\ Extras/RemoteDesktop.menu sudo rm -rf /System/Library/CoreServices/RemoteManagement/ sudo rm -rf /System/Library/PreferencePanes/ARDPref.prefPane sudo rm -rf /System/Library/StartupItems/RemoteDesktopAgent/ sudo rm /Library/Preferences/com.apple.ARDAgent.plist sudo rm /Library/Preferences/com.apple.RemoteManagement.plist
Make sure to clear the wastepaper basket.
Reinstall and run/Applications/Remote Desktop. app to complete subsequent installation, registration, and initial settings. There may be problems, because your installation package may refuse to be installed due to version issues, follow the Apple documentation Apple Remote Desktop 3.3: Installing in OS X Lion or Mountain Lion.
Okay, ARD should be okay.