With Windows XP if I wanted to lock up my workstation I would use Ctrl+Alt+Del and select the lock workstation.
How do I perform the same action on my Mac?
If you got a password on your account ..then just log-out ..
then you'll need a password to log back-in..
Hi,
there is also a Dashboard widget which can bring up the login window. Very convenient. Tutorial on my site.
/Rupert