Thunderbird tree grouping mode

[Marco Maccaferri]

Hi.

I have recently installed thunderbird 3.1.9 from Remi repository on 
Fedora 10 x86/64. It is configured to group discussions as a tree, it 
works but sometimes it display a discussion collapsed (only one row in 
the message list) and there is no way to expand it. Click on it displays 
a summary of all messages, clicking on the arrow does nothing. Clicking 
anywhere on the summary does nothing. In short there is no way to see 
the actual messages.

When the discussion is expanded, as it should be, the tree arrow works 
as expected, collapsing and expanding the tree correctly.

Please forgive me if this isn't the more appropriate mailing list to 
post this message to, but I'm not sure what is the cause. It is a 
thunderbird issue ? It is something on this Remi release ? More 
important, is there a fix or workaround ?

Regards,
Marco