[K12OSN] AutoLogout Screen Saver

[Jay Kline <list slushpupie com>]

Is there a screen saver or something that will automaticly log a user out if 
left idle for too long?  This is for a lab environment, so after 5 min of 
inactivity the screen saver should come up (password protected) and after 30 
min the user should be logged out to free the terminal up.  

Jay