kdesktop kde crash on startup

after making a clean install of kubuntu 7.04 using a md5sum hash verified .iso burnt to disk, on initial startup after installing 7.04, before running any additional programs, recieved

"the application KDesktop (kdesktop) crashed and caused the signal 6 (SIGABRT)"

In full the backtrace read as follows -

(no debugging symbols found)
Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1".
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[Thread debugging using libthread_db enabled]
[New Thread -1232852768 (LWP 5781)]
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[KCrash handler]
#6 0xffffe410 in __kernel_vsyscall ()
#7 0xb7ce4df0 in raise () from /lib/tls/i686/cmov/libc.so.6
#8 0xb7ce6641 in abort () from /lib/tls/i686/cmov/libc.so.6
#9 0xb7ee8270 in __gnu_cxx::__verbose_terminate_handler ()
   from /usr/lib/libstdc++.so.6
#10 0xb7ee5ca5 in ?? () from /usr/lib/libstdc++.so.6
#11 0xb7ee5ce2 in std::terminate () from /usr/lib/libstdc++.so.6
#12 0xb7ee5e1a in __cxa_throw () from /usr/lib/libstdc++.so.6
#13 0xb7ee625e in operator new () from /usr/lib/libstdc++.so.6
#14 0xb7ee633d in operator new[] () from /usr/lib/libstdc++.so.6
#15 0xb7561dc9 in QString::setLength () from /usr/lib/libqt-mt.so.3
#16 0xb7569748 in operator>> () from /usr/lib/libqt-mt.so.3
#17 0xb7aaecfb in KIO::Slave::createSlave () from /usr/lib/libkio.so.4
#18 0xb7adfcf3 in KIO::Scheduler::createSlave () from /usr/lib/libkio.so.4
#19 0xb7afc0c6 in KIO::Scheduler::startJobDirect () from /usr/lib/libkio.so.4
#20 0xb7afc449 in KIO::Scheduler::startStep () from /usr/lib/libkio.so.4
#21 0xb7afdafc in KIO::Scheduler::qt_invoke () from /usr/lib/libkio.so.4
#22 0xb724788b in QObject::activate_signal () from /usr/lib/libqt-mt.so.3
#23 0xb7248330 in QObject::activate_signal () from /usr/lib/libqt-mt.so.3
#24 0xb75d5ba6 in QTimer::timeout () from /usr/lib/libqt-mt.so.3
#25 0xb726f596 in QTimer::event () from /usr/lib/libqt-mt.so.3
#26 0xb71dea60 in QApplication::internalNotify () from /usr/lib/libqt-mt.so.3
#27 0xb71e088f in QApplication::notify () from /usr/lib/libqt-mt.so.3
#28 0xb78e6ce2 in KApplication::notify () from /usr/lib/libkdecore.so.4
#29 0xb71711e9 in QApplication::sendEvent () from /usr/lib/libqt-mt.so.3
#30 0xb71d14ab in QEventLoop::activateTimers () from /usr/lib/libqt-mt.so.3
#31 0xb7185d25 in QEventLoop::processEvents () from /usr/lib/libqt-mt.so.3
#32 0xb71f9136 in QEventLoop::enterLoop () from /usr/lib/libqt-mt.so.3
#33 0xb71f8f46 in QEventLoop::exec () from /usr/lib/libqt-mt.so.3
#34 0xb71e0609 in QApplication::exec () from /usr/lib/libqt-mt.so.3
#35 0xb65fe816 in kdemain () from /usr/lib/libkdeinit_kdesktop.so
#36 0xb66f5464 in kdeinitmain () from /usr/lib/kde3/kdesktop.so
#37 0x0804e6bf in ?? ()
#38 0x00000001 in ?? ()
#39 0x08077740 in ?? ()
#40 0x00000001 in ?? ()
#41 0x00000000 in ?? ()