Thunderbird Bug?

[Thierry Chatelet <tchatelet@free.fr>]

Can anyone try to reproduce the following in thunderbird:
Go to Write a new message or reply to a message.
Then go >Insert -> Characters and symbols

In my case, thunder bird quits immediatly.

i am running a desbian Sid machine, with thunderbird version 1.0.2
If a better description of my machine/software is needed, let me know 
what and maybe how to get it.
Thierry