On Saturday, March 1 we upgraded the eG Forums database infrastructure to enable better support for non-US characters (diacritics, non-Latin characters, etc.).
In some cases, particularly topic titles and usernames, it is possible that the conversion process broke pre-existing special characters: if you see one of these: ï¿½, please contact me via PM or e-mail and I will get it fixed to the correct character.
EDIT: You will see the occasional ï¿½ in place of a special character as you browse the forums. We're have identified the cause of the issue (thankfully, the correct character is still in the database!) and should have it resolved soon.
EDIT 2: See status update below for more info on special characters not showing up correctly.
Edited by Chris Hennes, 04 March 2014 - 12:10 AM.