Comment 14 for bug 388866

@fabiomarconi I have tested with the latest Lucid packages.

List of applets that open twice in Ubuntu 10.04 Desktop (updated packages to 2010-08-08):

** PREFERENCES **
Appearance
Assistive Technologies
IBus Preferences
Keyboard
Keyboard Shortcuts
Main Menu
Monitors
Mouse
Network Proxy
Palm OS Devices
Preferred Applications
Remote Desktop
Screensaver
Search and Indexing
Startup Applications
Windows

** ADMINISTRATION **
Computer Janitor
Hardware Drivers
Language Support
Log File Viewer
Login Screen
Network Tools
Printing
Software Sources
Startup Disk Creator
System Testing (causes a popup error which requires mouse click to cancel second instantiation. This should not even occur. It should just not open in the first place)
Time and Date
Users and Groups

As you can see, only a few were fixed.