Problem with unicode / UTF-8 while posting

Hi,

this editor (using Plain Text) does display unicode character without a problem, also the Preview and the Rich Text editor are fine, but if one posts the message the characters are converted to ‘’?’’

For example \u0439 = ? (a mirrored N with a small u above it) will here look like ?.

Edited: Here it looks now fine, but the characters I did post some days ago here http://www.jivesoftware.org/community/thread.jspa?threadID=22206 look like ???. Also when I try to edit this post it displays just ???.

LG