removing address book icon from app folder

Hi,

I cannot seem to get rid of the ical icon on the applications folder on the dock. Every time I drag the folder from finder to the dock it appears.

I've tried losing the app folder from the dock, opening up the app and then dragging it back across to the dock again. No luck. It's still there.

I've repaired even permissions and logged out and back in again. But it's still there when I drag from finder.

It's just a minor irritation of course. But why can't I lose it? Why is it there at all?

Hope someone can help?

FevLad