After computer "sleeps" I need to re-enter passphrase
Just bought a new laptop - on the old laptop, after the computer would go to "sleep" it would require me to re-enter the passphrase - on this computer, I can't seem to get it to do this. For security reasons, if my laptop is left for a number of minutes, it needs to be able to lock others out. Does anyone know what settings I use to do this? Is it the "unmounting" option? Any suggestions are more than welcome!