kmail crashes on logout

Binary package hint: kmail

kmail has started crashing when I log out (not exactly every time but almost). I get the following stack trace from the
crash handler:

Application: KMail (kmail), signal SIGABRT
[Thread debugging using libthread_db enabled]
[New Thread 0xb42b46c0 (LWP 7243)]
[KCrash handler]
#6 0xb80cf430 in __kernel_vsyscall ()
#7 0xb6534880 in raise () from /lib/tls/i686/cmov/libc.so.6
#8 0xb6536248 in abort () from /lib/tls/i686/cmov/libc.so.6
#9 0xb70b7795 in qt_message_output () from /usr/lib/libQtCore.so.4
#10 0xb70b7872 in qFatal () from /usr/lib/libQtCore.so.4
#11 0xb70b7915 in qt_assert () from /usr/lib/libQtCore.so.4
#12 0xb7bbf52d in ~KMAcctImap (this=0xa0a5f08)
    at /usr/include/qt4/QtCore/qhash.h:1006
#13 0xb7b3b52e in ~AccountManager (this=0xa061df8)
    at /usr/include/qt4/QtCore/qalgorithms.h:346
#14 0xb7c2b11e in KMKernel::cleanup (this=0xbf8cdfcc)
    at /build/buildd/kdepim-4.1.2/kmail/kmkernel.cpp:1683
#15 0x0804a6ca in main (argc=) at /build/buildd/kdepim-4.1.2/kmail/main.cpp:148
#0 0xb80cf430 in __kernel_vsyscall ()

ProblemType: Bug
Architecture: i386
DistroRelease: Ubuntu 8.10
Package: kmail 4:4.1.2-0ubuntu2
ProcEnviron:
 LANGUAGE=en_US
 LC_CTYPE=sv_SE.UTF-8
 PATH=/usr/bin/X11:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/aldor/linux/1.0.2/bin:/home/matte/username/bin:/home/matte/username/texfiler/bin:.
 LANG=en_US.UTF-8
 SHELL=/usr/bin/zsh
SourcePackage: kdepim
Uname: Linux 2.6.27-7-generic i686