Hi, I can't reproduce it on my normal system (Italian with UTF-8). Anyway I found the same dialog when changing the "Outgoing character encoding" from "UTF-8" to "ISO-8859-1".
Try to set that explicitly to UTF-8 (it's under Common Preferences->Display->Encoding). This dialog can also appear sometime when there are ISO-8859 characters in a UTF mail (eg. when replying to ISO-encoded message, if there's a signature not properly encoded, etc etc). I don't think this is a bug, but only a bit of configuration related tuning needed. Cheers, Luca -- .''`. ** Debian GNU/Linux ** | Luca Bruno : :' : The Universal O.S. | luca.br(AT)uno.it `. `'` | GPG Key ID: 3BFB9FB3 `- http://www.debian.org | Proud Debian GNU/Linux User
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