disable verify images feature ?

[anhvienls]

Hello everybody !
Now I used VBB 3.8.1 editor . But I had met in this case .
When I create new topic or Reply topic , I saw verify images feature

http://img8.imageshack.us/img8/361/capturewpl.jpg

And now , I want disable that feature . How ?

Can you help me ? thanks

[nexialys]

admincp >> vbulletin options >> Human Verification Options

read the whole stuff, you have to set permission per usergroup.

[anhvienls]

oh ,yeah !

thank you so much .