Version:           1.9.6 (using KDE 3.5.6 "release 64.1" , openSUSE )
Compiler:          Target: x86_64-suse-linux
OS:                Linux (x86_64) release 2.6.18.8-0.1-default

I manually selected refresh for my IMAP mail account (connected to an Exchange server) and I got the below crash.  I also have Thunderbird active if that makes any difference.

System configuration startup check disabled.

Using host libthread_db library "/lib64/libthread_db.so.1".
[Thread debugging using libthread_db enabled]
[New Thread 47853935221440 (LWP 31725)]
[New Thread 1107310912 (LWP 31730)]
[New Thread 1098918208 (LWP 31729)]
[New Thread 1090525504 (LWP 31728)]
[New Thread 1082132800 (LWP 31727)]
[KCrash handler]
#5  0x0000000000000081 in ?? ()
#6  0x00002b85d21cc453 in KMHeaders::msgRemoved ()
   from /opt/kde3/lib64/libkmailprivate.so
#7  0x00002b85d21d4384 in KMHeaders::qt_invoke ()
   from /opt/kde3/lib64/libkmailprivate.so
#8  0x00002b85d31a364c in QObject::activate_signal ()
   from /usr/lib/qt3/lib64/libqt-mt.so.3
#9  0x00002b85d21fe6e6 in KMFolder::msgRemoved ()
   from /opt/kde3/lib64/libkmailprivate.so
#10 0x00002b85d21ff0fc in KMFolder::qt_emit ()
   from /opt/kde3/lib64/libkmailprivate.so
#11 0x00002b85d31a368a in QObject::activate_signal ()
   from /usr/lib/qt3/lib64/libqt-mt.so.3
#12 0x00002b85d22185e6 in FolderStorage::msgRemoved ()
   from /opt/kde3/lib64/libkmailprivate.so
#13 0x00002b85d221992f in FolderStorage::take ()
   from /opt/kde3/lib64/libkmailprivate.so
#14 0x00002b85d224894b in KMFilterMgr::endFiltering ()
   from /opt/kde3/lib64/libkmailprivate.so
#15 0x00002b85d2249c9d in KMFilterMgr::process ()
   from /opt/kde3/lib64/libkmailprivate.so
#16 0x00002b85d228d053 in KMAcctImap::slotFilterMsg ()
   from /opt/kde3/lib64/libkmailprivate.so
#17 0x00002b85d228e744 in KMAcctImap::qt_invoke ()
   from /opt/kde3/lib64/libkmailprivate.so
#18 0x00002b85d31a364c in QObject::activate_signal ()
   from /usr/lib/qt3/lib64/libqt-mt.so.3
#19 0x00002b85d236b578 in KMail::FolderJob::messageRetrieved ()
   from /opt/kde3/lib64/libkmailprivate.so
#20 0x00002b85d2374b07 in KMail::ImapJob::slotGetMessageResult ()
   from /opt/kde3/lib64/libkmailprivate.so
#21 0x00002b85d237591f in KMail::ImapJob::qt_invoke ()
   from /opt/kde3/lib64/libkmailprivate.so
#22 0x00002b85d31a364c in QObject::activate_signal ()
   from /usr/lib/qt3/lib64/libqt-mt.so.3
#23 0x00002b85d682d912 in KIO::Job::result () from /opt/kde3/lib64/libkio.so.4
#24 0x00002b85d68647bf in KIO::Job::emitResult ()
   from /opt/kde3/lib64/libkio.so.4
#25 0x00002b85d6876d0a in KIO::SimpleJob::slotFinished ()
   from /opt/kde3/lib64/libkio.so.4
#26 0x00002b85d687735a in KIO::TransferJob::slotFinished ()
   from /opt/kde3/lib64/libkio.so.4
#27 0x00002b85d6864428 in KIO::TransferJob::qt_invoke ()
   from /opt/kde3/lib64/libkio.so.4
#28 0x00002b85d31a364c in QObject::activate_signal ()
   from /usr/lib/qt3/lib64/libqt-mt.so.3
#29 0x00002b85d31a4323 in QObject::activate_signal ()
   from /usr/lib/qt3/lib64/libqt-mt.so.3
#30 0x00002b85d68838e5 in KIO::SlaveInterface::dispatch ()
   from /opt/kde3/lib64/libkio.so.4
#31 0x00002b85d688b50e in KIO::SlaveInterface::dispatch ()
   from /opt/kde3/lib64/libkio.so.4
#32 0x00002b85d6839cdb in KIO::Slave::gotInput ()
   from /opt/kde3/lib64/libkio.so.4
#33 0x00002b85d687ca08 in KIO::Slave::qt_invoke ()
   from /opt/kde3/lib64/libkio.so.4
#34 0x00002b85d31a364c in QObject::activate_signal ()
   from /usr/lib/qt3/lib64/libqt-mt.so.3
#35 0x00002b85d31a424f in QObject::activate_signal ()
   from /usr/lib/qt3/lib64/libqt-mt.so.3
#36 0x00002b85d31bde4b in QSocketNotifier::event ()
   from /usr/lib/qt3/lib64/libqt-mt.so.3
#37 0x00002b85d314c4d5 in QApplication::internalNotify ()
   from /usr/lib/qt3/lib64/libqt-mt.so.3
#38 0x00002b85d314d107 in QApplication::notify ()
   from /usr/lib/qt3/lib64/libqt-mt.so.3
#39 0x00002b85d2950f88 in KApplication::notify ()
   from /opt/kde3/lib64/libkdecore.so.4
#40 0x00002b85d3141c2b in QEventLoop::activateSocketNotifiers ()
   from /usr/lib/qt3/lib64/libqt-mt.so.3
#41 0x00002b85d31027a0 in QEventLoop::processEvents ()
   from /usr/lib/qt3/lib64/libqt-mt.so.3
#42 0x00002b85d3161083 in QEventLoop::enterLoop ()
   from /usr/lib/qt3/lib64/libqt-mt.so.3
#43 0x00002b85d3160f32 in QEventLoop::exec ()
   from /usr/lib/qt3/lib64/libqt-mt.so.3
#44 0x00000000004029a7 in main ()