Problem with XML strings not displaying them

Is there a way to make XML print accented strings?

<whatever name="Método"/>
<whatever name="Gestión"/>

I cant make a flash (that uses an XML file) to load correctly the strings above. It either shrinks them (Método > Mdo) or doesnt even display them.

I’ve tried also using this as header:

<?xml version="1.0" encoding="ISO8851-1"?>

Is there any way to get rid of this problem?