How do you aim grenades?

[Swordsman]

I'm having some problems also. I'm starting to figure out how to aim them, but it's still much harder than any of the other weapons. Plus, I can see that sometimes if one goes off near an enemy, the red damage numbers will float above it's head, yet the health bar doesn't go down. It seems like you pretty much have to hit the target dead on. That takes away some of the benefit of a grenade, which is supposed to hurt without a direct hit.