even though they are almost identical I am adding one more backtrace here that happened a few minutes later on a diffrent message just so everything is crystal clear for the lucky soul to try and track this down ( no i wont post 1000 bt of the same thing ) Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1". [Thread debugging using libthread_db enabled] [New Thread -1249106256 (LWP 5339)] [New Thread -1277731936 (LWP 5343)] [New Thread -1269339232 (LWP 5342)] [New Thread -1260946528 (LWP 5341)] [New Thread -1252553824 (LWP 5340)] [KCrash handler] #6 0x2820786f in ?? () #7 0xb7de2a20 in KMail::ImapJob::slotGetNextMessage (this=0x84a20f8) at /build/buildd/kdepim-3.5.4/./kmail/imapjob.cpp:279 #8 0xb7de3799 in KMail::ImapJob::init (this=0x84a20f8, jt=KMail::FolderJob::tGetMessage, sets=@0xbfb62348, folder=0x0, msgList=@0x84a2120) at /build/buildd/kdepim-3.5.4/./kmail/imapjob.cpp:216 #9 0xb7de4c5d in KMail::ImapJob::execute (this=0x84a20f8) at /build/buildd/kdepim-3.5.4/./kmail/imapjob.cpp:647 #10 0xb7dd7e8d in KMail::FolderJob::start (this=0x87b06c8) at /build/buildd/kdepim-3.5.4/./kmail/folderjob.cpp:109 #11 0xb7db99ad in KMMainWidget::slotMsgSelected (this=0x839f560, msg=0x882f7e0) at /build/buildd/kdepim-3.5.4/./kmail/kmmainwidget.cpp:1893 #12 0xb7dcd4b0 in KMMainWidget::qt_invoke (this=0x839f560, _id=55, _o=0xbfb62454) at ./kmmainwidget.moc:479 #13 0xb70b282f in QObject::activate_signal () from /usr/lib/libqt-mt.so.3 #14 0xb7c2144e in KMHeaders::selected (this=0x83b7b18, t0=0x882f7e0) at ./kmheaders.moc:250 #15 0xb7c23499 in KMHeaders::highlightMessage (this=0x83b7b18, lvi=0x891e178, markitread=false) at /build/buildd/kdepim-3.5.4/./kmail/kmheaders.cpp:2020 #16 0xb7c2388c in KMHeaders::highlightMessage (this=0x83b7b18, i=0x891e178) at /build/buildd/kdepim-3.5.4/./kmail/kmheaders.cpp:2269 #17 0xb7c30d96 in KMHeaders::qt_invoke (this=0x83b7b18, _id=107, _o=0xbfb62598) at ./kmheaders.moc:295 #18 0xb70b282f in QObject::activate_signal () from /usr/lib/libqt-mt.so.3 #19 0xb7456d55 in QListView::currentChanged () from /usr/lib/libqt-mt.so.3 #20 0xb71acd8f in QListView::setCurrentItem () from /usr/lib/libqt-mt.so.3 #21 0xb71b0b83 in QListView::contentsMousePressEventEx () from /usr/lib/libqt-mt.so.3 #22 0xb71b1288 in QListView::contentsMousePressEvent () from /usr/lib/libqt-mt.so.3 #23 0xb5e761c7 in KListView::contentsMousePressEvent () from /usr/lib/libkdeui.so.4 #24 0xb7c239c9 in KMHeaders::contentsMousePressEvent (this=0x83b7b18, e=0xbfb628ec) at /build/buildd/kdepim-3.5.4/./kmail/kmheaders.cpp:2181 #25 0xb71e7fb1 in QScrollView::viewportMousePressEvent () from /usr/lib/libqt-mt.so.3 #26 0xb71e9424 in QScrollView::eventFilter () from /usr/lib/libqt-mt.so.3 #27 0xb71b16f6 in QListView::eventFilter () from /usr/lib/libqt-mt.so.3 #28 0xb7c25099 in KMHeaders::eventFilter (this=0x83b7b18, o=0x83b7140, e=0xbfb62ec0) at /build/buildd/kdepim-3.5.4/./kmail/kmheaders.cpp:241 #29 0xb70b1ddc in QObject::activate_filters () from /usr/lib/libqt-mt.so.3 #30 0xb70b1e5a in QObject::event () from /usr/lib/libqt-mt.so.3 #31 0xb70e9533 in QWidget::event () from /usr/lib/libqt-mt.so.3 #32 0xb7049a98 in QApplication::internalNotify () from /usr/lib/libqt-mt.so.3 #33 0xb704bc56 in QApplication::notify () from /usr/lib/libqt-mt.so.3 #34 0xb7772fe2 in KApplication::notify () from /usr/lib/libkdecore.so.4 #35 0xb6fdc3fd in QApplication::sendSpontaneousEvent () from /usr/lib/libqt-mt.so.3 #36 0xb6fdb062 in QETWidget::translateMouseEvent () from /usr/lib/libqt-mt.so.3 #37 0xb6fd914c in QApplication::x11ProcessEvent () from /usr/lib/libqt-mt.so.3 #38 0xb6ff0320 in QEventLoop::processEvents () from /usr/lib/libqt-mt.so.3 #39 0xb706416e in QEventLoop::enterLoop () from /usr/lib/libqt-mt.so.3 #40 0xb7063f7e in QEventLoop::exec () from /usr/lib/libqt-mt.so.3 #41 0xb704b641 in QApplication::exec () from /usr/lib/libqt-mt.so.3 #42 0x0804a0fe in main (argc=-1208882168, argv=0xb79291e0) at /build/buildd/kdepim-3.5.4/./kmail/main.cpp:110 #43 0xb780d8cc in __libc_start_main () from /lib/tls/i686/cmov/libc.so.6 #44 0x08049e61 in _start ()