How to get special accents like O umlaut to show up? (Topic has 2 images ~300kb.)

[3ICE]

<-- For question one.
<-- Two.

Hi,

Question one: I don't know how to get the two Hungarumlauts (Hungarian umlauts) to work in an addon: őŐ and űŰ. They are double acute accented letters, which everything seems to hate. Their capital versions even show up as "?" in chat if sent by an addon. (Lowercase works fine as you can see above.)

Question two: Binding keys to these letters works fine, but they don't show up properly in the keybinding interface and are not highlighted in red either.

More info (and addon used) here: wowinterface.com/comment/324098

Thanks.