Im in the Umar Hills and somehow all my NPC's had adquired "Vampirism" as an ability that they can use, my character did not adquired it and he is a Paladin I guess this has something to do with it, but why do they have this? how they adquired it? and how do I get rid of this?...any help would be apreciated, this never happened to me before and its my 4th time playing the game. thx.

You, or someone with access to your computer, added the "Templates" package. Vampire is the first available Template. You ought to wait for Half-Celelstial if you want to remain good. Your Clerics, Druids and Mages ought to wait for the Lich template.

Or you could just ignore these "abilities" alltogether. They are not a real part of the game.

-- Nifft

Whats the templates package?