I want my computer to prompt for a password if I walk away from my computer. I have that box checked in the control panel, yet when I wake the computer up it goes straight to where the screen was when I left. It doesn't prompt for my password.
are you sure its going to sleep, or is the monitor just going into power saving mode? check the timer you have for how much idle time it takes to put it to sleep. and you have windows 7 or 8 right?