Lucid: Thunderbird crashes

[Thomas Kaiser]

I just updated to Lucid (10.04) last weekend. Now, Thunderbird crashes 
every day (usually in the night when I am sleeping).

I run it from the terminal:
thomas at AMD64:~$ thunderbird
deliver mode: 0
Segmentation fault

Only "Segmentation fault" as an output, not a big help.

Here the details about my version:
thomas at AMD64:~$ uname -a
Linux AMD64 2.6.32-21-generic #32-Ubuntu SMP Fri Apr 16 08:09:38 UTC 
2010 x86_64 GNU/Linux
thomas at AMD64:~$ lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 10.04 LTS
Release:	10.04
Codename:	lucid