OK. I must be dense. I have opened the box in the bedroom and both boxes in the room behind the book case and still no element. What does it look like and where is it exactly. If I have to reset all of the quests to get this to go I will shoot my computer (Or at least shut it off for a week or so).

1) You get this from Anabrin (sp)
2) Armory: The gargoyle head is broken, but you can see a skeleton inside. Kill the skeleton from between the barred windows and the door will open, giving you access to another element.
3) Gargoyle Chain Lock: Get the combination correct and it will open a gate to a room with two chest. One has the element.
4) The Succubus in the sewers has one.
5) D'Soto's Tower: The element is inside a chest in the corner of the room.