After some trial and error I've found the culprit. I had installed the "tango icons for thunderbird" theme. Selecting the default theme (no matter what extensions are active) solves the problem.
I'm going to add this info to the ubuntu bug and close it. I hope Jose Luis was experiencing the same problem and this bug can be closed too. On 6/15/07, Alexander Sack <[EMAIL PROTECTED]> wrote:
On Fri, Jun 15, 2007 at 09:26:10AM +0200, Miguel Rodríguez Pérez wrote: > I have installed: > > * Display Mail User Agent Extension > * Enigmail (from the Ubuntu package) > * Mail Redirect > * Sender Verification Extension > > I can try to remove them... but they've been installed for a very long > time without causing any errors. Yes, but try to disable them anyway. - Alexander
