Problem with greek charset

Hi,
I was testing UDDEIM 1.2(beta) with Joomla 1.5.3 localhost and i had no problem. The characters in the messages were correctly.
When i got it on server i have the problem that the greek characters (only in the pms) are like ???????????.
Any suggestions?

Link: www.vetnews.gr
(sorry for my bad english)

Thank You

Have you checked the options in the system tab?

Do you use a different character encoding for the database connection on your server than on your localhost?

Thank you for the reply.
I have change the encoding in system tabs to UTF-8.
My sql data connection is UTF8_unicode_ci.

So its working now?

No its not working.
I have all the characters translated such as inbox, outbox, compose but inside the message the characters greek charaters appears as ?????????.
Cant understand

I am not quite sure if I understand your problem correctly:

When you open the inbox, outbox etc. The lists are fine and all greek characters are displayed.

When you open a message, the message text contains invalid characters.

What is the encoding of your site template? Could you send me a login to your page plz?