Ciao is a screensaver for Mac OS X that automatically logs out the current user after a specified period of inactivity. It's a great tool for schools, libraries, and businesses; Ciao is also perfect at home if a few people share a computer and everybody wants to protect their account.
ANONYMOUS I love the program but I just found out in 10.3 you can go to system preferences and in the security enable "Require Password to wake this computer from sleep or screen saver (Version 1.0)
RYNO3 it works exactly as the author says it does, but it would be nice to have it work instantly at users choice instead of the mandatory minimum wait of 30 seconds before working. keep in mind that the user has already waited 3+ minutes for their screensaver to activate, so give us a zero minimum wait time. thank you.