html language?

I create a html page in my phpbb2 forum,with some Greek characters.
But when I submit it,the result is some other characters.Look at the picture.
.
My forum link is
http://fataola.forumgreek.com/

solved,just add this meta tag in the head.

Code:

<meta http-equiv="content-type" content="text/html;charset=utf-8" />

Thank you for posting the solution

Topic Solved & Locked