iPhone SDK: Interface Builder label font, only shows when editing label

I have tried this on a few installations of the 3.1.3 SDK.

When I add a label to my view, I would like to change the font to something like Futura. I know how to change the font, but, for some reason, it does not show that it is changed. ONLY when I edit the label by double clicking, do I see my new font. And, this is the only time that I do get to see the new font, is when editing the开发者_如何学Go label.

Why does this happen? How can I change the font of my labels, and have it show up? Why would I care to have the font changed when I edit the label?!

There are only a few system fonts installed on the iPhone. So when you try to use a non standard font, ala Future, it will not work, because that is no installed on the iPhone.