[BlueNinjaGo]

You can do this without installing a modification (for those who like to keep as few installed as possible)

Originally Posted by Me

Human Verification

Get started:

1. Go into the Admin Control Panel.
2. Click on vBulletin Options category.
3. Click on Human Verification Manager.



* Question and Answer Verification


Question and Answer Verification are "Questions provided by you that must be answered appropriately for verification."

This is the question I use, and I've had no problems with it so far.

Question:
What is the fifth word in this question? (no punctuation)

Regular Expression:
^[A-Z]{1,10}$

Answers:
word
WORD
Word