No, there is a setting for this when you create a link in the new iBox editor. If you edit a link and go to the Target tab you will see that there are three choices for the link target. The choices are not set, New Window, and Same Window. I want that default changed. With the old editor if you put in a link it always went to a new window.
It could be that a browser setting takes over if "not set" is selected.