Small Forum Bug?

Greek displays just fine on the forums, except in the topic review on the “Post New Reply” screen. There, instead of getting Greek characters, I get ?€??οοίμιο . I mention this because, even though I’m not studying Greek now, I will be in the distant future, and this would be annoying. Plus, it probably is annoying to those who already use Greek now. I doubt the problem is on my end- I’m on Ubuntu Linux using Firefox. Linux is usually pretty good at supporting multiple languages.