Image Verification Setting is Missing

We're running 2.2.4 Pro and want to enable Image Verification / CAPTCHA. However the Image Verification option is not shown under Settings. Any ideas on how to get this option to display?

in settings then down left side of screen, image verification



John

[quote name='johnbol1' timestamp='1339067263' post='138204']

in settings then down left side of screen, image verification



John

[/quote]



Thanks. I know where it's supposed to be, but the menu isn't there. See screen capture.

mmm, not sure it it needs activating in addons or not in 2.24



John