Ok thanx for your help.
Just some isues stil present in the current CVS version ( tested with french):
- When composing new message charset is set to utf-8 by default instead of correct encoding corresponding to the locale (ISO-8859-1)
- Some text on the top right (box empty, messages from 1 to 1, ...) still have bad special characters display.
Thanx a lot for your help.
Regards.