Some XMl (FontString) trouble

[Bait the Bard]

I've been working on a little mod of my own for the past few weeks, and I'm having a bit of trouble displaying text to the UI. The text is there, but is currently very small in font-size. I've tried various sizes in the FontString attribute, but they don;t seem to change anything.

I was wondering if you guys could tell me what to do, or point me to relevent threads/articles.

The relevent code is as follows:

	<MessageFrame name="AddOn_Frame" insertMode="TOP" parent="UIParent" frameStrata="HIGH" toplevel="true">
	
		<Scripts>
			<OnLoad>
				AddOn_OnLoad();
			</OnLoad>
			<OnEvent>
				AddOn_OnEvent();
			</OnEvent>
		</Scripts>
		
		<FontString inherits="GameFontNormal" justifyH="CENTER">
			<FontHeight>
				<RelValue val=".35"/>
			</FontHeight>
		</FontString>

		<Size>
			<AbsDimension x="400" y="50"/>
		</Size>
		
		
	</MessageFrame>

Thanks for your time.
- Bait