1. you need access to the Skill Dual Light Weapons via one of the classes listed for it here:
http://www.gamebanshee.com/dungeonlo...onryskills.php
2. you need I *think* at least one skill level in Dual Light Weapons.
3. your off-hand weapon needs to be a light weapon.
4. your regular weapon needs to be compatible with dual-light weapon use. (..several heavy weapons will not work.)
(..I'm just not "quick enough" anymore - the Queen beat me to it! LOL.)