Box keeps resizing Interface Builder

Still a n00b (sorry) and I wondered if there is a solution this rather simple quandry which I cannot find an answer for (probably because it is so simple).

Basically I have a label which is inside a custom开发者_如何学JAVA box. When I change the box size and then hit run the box size changes back to another random annoying size. It sounds simple enough but can I change it so that it sticks to the definitions I set. I have a series of labels and it would be great if the layout were the same. Thanks.

Turn off 'Live Autoresizing' in the menu.