Comment 37 for bug 501670

Just two tips for user who have this problem starting Thunderbird.
My friend is running Ubuntu karmic 9.10 and thunderbird 3.1.2.
Sometime thunderbird stop working, he double click the icon but the program doesn't start.
So i read this discussion, and, as said by scutterman in #16, the solution is in the mozilla Kb http://kb.mozillazine.org/Standard_diagnostic_-_Thunderbird

In my case I have opened a terminal, then typed thunderbird -safe-mode and thunderbird start.
After that I've disabled all extension, closed thunderbird and reopened in normal mode 2 or 3 times (just typing thunderbird or double click in the desktop icon).
Next step (to repeat for every extension do you have) is to enable one extension a time, close thunderbird and reopen.
After a while I have found the guilty, in my case Lightning 1.0b2.

g_set_prgname() called multiple times is only a warning and have nothing to do with the real problem ;)
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