How to use umlauts in iGUI | Unity Inspector?

Hi there,
I want to build an App in Unity with iGUI and I try to set the text for my labels in the Unity-Inspector. This works fine, but in the App it appears wrong.

If the word should be “Über” it appears “ber” - the umlaut is missing.

How can I fix this without scripting? Is there a way to set this in Unity itself?

The solution:

The font has set to UNICODE in the inspector.