Hebrew Characters Problem

[eluser]yNaxon[/eluser]
Hello,
I'm having a problem with hebrew characters:
when i'm fetching data from the db, which it's allocate is utf8_general_ci,
the hebrew characters displayed by question-marks.

my charset is windows-1255, if I change it to utf-8 the string which is not from the database is displayed by '�' and the hebrew still displayed by question marks.

how can I make it work?
Thanks alot,
Yonatan.