LaTeX It!

Ohodnoceno 5 z 5 hvězdiček

od MrJonDoe dne Led. 2, 2011 · trvalý odkaz

I used it a lot in the past (the reason of my 5 stars) but now, I'm experiencing a problem.
Indeed, I'm on Ubuntu 10.10 with Thunderbird 3.1.7 and the "Latex It" button does not appear when I write a mail.
The configuration is OK (the 3 progs are detected and status is OK) but the button "Latex It" does not appear ! Impossible to use it, then !
How to solve this problem ?
Thanks in advance !