Accented letters in localization

[Waky]

I'm in the process of trying to localize one of my addons, but I'm unsure how to go about using words with accents such as "Círculo" meaning "Circle" in Spanish. The problem is once I put that in my localization table it shows up as something along the lines of "C?rcle" and it's mashed together to seem lie only 3 letters long or so.

How do I go about making WoW recognize these characters, do I need the hex or oct values?

Thanks!