Require password when waking from sleep

Hello.

On my (new) MacBook Pro, I have found how to set up OS X to need a password when booting up from a powered down state but how can I set it to demand a password when waking from sleep?

This was a simple tick in Win XP but I can't find it in OS X 10.5.5

I am sure it's straight forward here too, most things are with a Mac I am finding, it's just knowing where to look. I can't see it in System Preferences.

Thanks.

wint.

Apple Menu> System Preferences> Security - first check box under the 'General' tab.

Flippin` eck, that was quick!

Thanks very much skaheadpunk.

I thought it would be easy and it is

*I thought I had posted this yesterday but just found it sitting there*