Package: mozilla-thunderbird
Version: 1.0.7-3
Severity: normal

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These may seem like two separate issues, but I expect that they are related.

When perusing a very large folder in thread view (e.g. my archive of
debian-users) some threads, when expanded, do not show all of their messages.
When the thread is then collapsed, the next few messages after the whole thread
(messages that are *not* in the thread) disappear.  Refreshing the folder by
switching to another folder and switching back revives the messages, so it
appears to be a purely GUI-related issue.

By way of demonstration, I have a thread that appears to have six messages,
including the top-level one.  When the folder is initially displayed, the
top-level message is underlined, indicating there are new messages in the
thread.  When I expand the thread, no messages are bolded -- the unread message
is simply not displayed, so it seems like thunderbird is thinking something
like "I just displayed six messages" when it displayed only five (perhaps the
unread one caused some error, so it was not added to the list).  Then when I go
to collapse the tree, thunderbird removes six messages following the top-level
one, but since one of them was never added to the list, the next thread gets
hidden too.

Of course I could be completely wrong, but that's the best diagnostic I can
give, given the information I have.  And it doesn't happen all the time, but
when it does happen with a particular thread, it is completely reproducable
with that thread.  The best suggestion I can offer to find this problem is sign
up for a high-volume mailing list, like debian-users, and play with expanding
and collapsing threads in thread view.  Eventually you'll notice it happen.

- -- System Information:
Debian Release: testing/unstable
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: i386 (i686)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.12-1-686
Locale: LANG=en_US, LC_CTYPE=en_US (charmap=ISO-8859-1)

Versions of packages mozilla-thunderbird depends on:
ii  libatk1.0-0              1.10.3-1        The ATK accessibility toolkit
ii  libc6                    2.3.5-8         GNU C Library: Shared libraries an
ii  libfontconfig1           2.3.2-1.1       generic font configuration library
ii  libfreetype6             2.1.7-2.4       FreeType 2 font engine, shared lib
ii  libgcc1                  1:4.0.2-5       GCC support library
ii  libglib2.0-0             2.8.4-2         The GLib library of C routines
ii  libgtk2.0-0              2.8.9-2         The GTK+ graphical user interface 
ii  libjpeg62                6b-11           The Independent JPEG Group's JPEG 
ii  libpango1.0-0            1.10.1-2        Layout and rendering of internatio
ii  libpng12-0               1.2.8rel-5      PNG library - runtime
ii  libstdc++6               4.0.2-5         The GNU Standard C++ Library v3
ii  libx11-6                 6.8.2.dfsg.1-11 X Window System protocol client li
ii  libxext6                 6.8.2.dfsg.1-11 X Window System miscellaneous exte
ii  libxft2                  2.1.7-1         FreeType-based font drawing librar
ii  libxp6                   6.8.2.dfsg.1-11 X Window System printing extension
ii  libxrender1              1:0.9.0.2-1     X Rendering Extension client libra
ii  libxt6                   6.8.2.dfsg.1-11 X Toolkit Intrinsics
ii  xlibs                    6.8.2.dfsg.1-11 X Window System client libraries m
ii  zlib1g                   1:1.2.3-9       compression library - runtime

Versions of packages mozilla-thunderbird recommends:
ii  myspell-en-gb [myspell-dictio 1:2.0.0-1  English_british dictionary for mys
ii  myspell-en-us [myspell-dictio 1:2.0.0-1  English_american dictionary for my
pn  xprint                        <none>     (no description available)

- -- debconf information excluded

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