encoding problem.

when i post a new message, the message “Question added successfuly” with the message title is not encoded correctly.
so the title is not displayed correctly.

anywhere else in the forum, the titles are encoded ok. (list questions, view all etc.)
only after posting a question.

also when i get email notification, the question’s title is not encoded correctly so in the email the title is not displayed correctly.

how can i fix it?

http://ww.wp.xz.cn/extend/plugins/question-and-answer-forum/