Thunderbird version version (20080925) Running Ubuntu 8.10
with latest updates.
When I start Thunderbird while wired to my corporate network it starts
normally and everything works. But if I am wireless to the network
Thunderbird will not start. It do nothing. I can see the process in
'ps aux' but the window never shows. Note that if I start Thunderbird
while wired and then switch to wireless, it will continue to work as
it should, downloading e-mails.

Anyone have any ideas?