The problem has nothing to do with email client since the problem happens when trying to type some accented char when I want to send a message in the browser showing imagevue gallery. I verified that my browsers (firefox 3 and konqueror from KDE) use UTF-8 when viewing the page.
I googled around for such problems and I found
this. It seems to be a known bug of Flash Player 9 - 9_0_15_0 under linux. I can enter accented chars correctly when pressing CTRL...
Strange. But this is NOT an imagevue bug...
I'm waiting for an adobe fix
Problem closed, for me. Thank you very much for your help...
MacDo