selecting DSL crashes Knet

After opening Knet and ticking "dsl" Knet immediately crashes. I am using a BT Voyager USB adsl modem. Kubuntu Dapper.

traceback pasted.
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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 -1237674304 (LWP 9983)]
[KCrash handler]
#6 0xb6ee359b in QGListIterator (this=0xbf960744, l=@0x0)
    at tools/qglist.cpp:1099
#7 0x0806ade5 in QValueList<QString>::detachInternal ()
#8 0x080ab074 in QMultiLineEdit::setAutoUpdate ()
#9 0xb6be2f56 in QObject::activate_signal (this=0x82ecd08, clist=0x82ed148,
    o=0xbf96084c) at kernel/qobject.cpp:2380
#10 0xb6be38c4 in QObject::activate_signal (this=0x82ecd08, signal=4)
    at kernel/qobject.cpp:2325
#11 0xb6f7e89f in QButton::clicked (this=0x82ecd08)
    at .moc/debug-shared-mt/moc_qbutton.cpp:152
#12 0xb6c7e46a in QButton::mouseReleaseEvent (this=0x82ecd08, e=0xbf960ccc)
    at widgets/qbutton.cpp:836
#13 0xb6c1d5fd in QWidget::event (this=0x82ecd08, e=0xbf960ccc)
    at kernel/qwidget.cpp:4702
#14 0xb6b78dc6 in QApplication::internalNotify (this=0xbf961f0c,
    receiver=0x82ecd08, e=0xbf960ccc) at kernel/qapplication.cpp:2635
#15 0xb6b79350 in QApplication::notify (this=0xbf961f0c, receiver=0x82ecd08,
    e=0xbf960ccc) at kernel/qapplication.cpp:2421
#16 0xb72fdced in KApplication::notify () from /usr/lib/libkdecore.so.4
#17 0xb6b0a15d in QApplication::sendSpontaneousEvent (receiver=0x82ecd08,
    event=0xbf960ccc) at qapplication.h:523
#18 0xb6b0580b in QETWidget::translateMouseEvent (this=0x82ecd08,
    event=0xbf961108) at kernel/qapplication_x11.cpp:4301
#19 0xb6b03cf1 in QApplication::x11ProcessEvent (this=0xbf961f0c,
    event=0xbf961108) at kernel/qapplication_x11.cpp:3478
#20 0xb6b1d473 in QEventLoop::processEvents (this=0x80fa678, flags=4)
    at kernel/qeventloop_x11.cpp:192
#21 0xb6b918b7 in QEventLoop::enterLoop (this=0x80fa678)
    at kernel/qeventloop.cpp:198
#22 0xb6b77901 in QApplication::enter_loop (this=0xbf961f0c)
    at kernel/qapplication.cpp:2793
#23 0xb6d96338 in QDialog::exec (this=0x81b9368) at dialogs/qdialog.cpp:432
#24 0x0805f4d8 in endl ()
#25 0x0806358b in endl ()
#26 0xb6be2e29 in QObject::activate_signal (this=0x819d160, clist=0x81aecf0,
    o=0xbf96134c) at kernel/qobject.cpp:2356
#27 0xb6be38c4 in QObject::activate_signal (this=0x819d160, signal=4)
    at kernel/qobject.cpp:2325
#28 0xb6f7e89f in QButton::clicked (this=0x819d160)
    at .moc/debug-shared-mt/moc_qbutton.cpp:152
#29 0xb6c7e46a in QButton::mouseReleaseEvent (this=0x819d160, e=0xbf9617cc)
    at widgets/qbutton.cpp:836
#30 0xb6c1d5fd in QWidget::event (this=0x819d160, e=0xbf9617cc)
    at kernel/qwidget.cpp:4702
#31 0xb6b78dc6 in QApplication::internalNotify (this=0xbf961f0c,
    receiver=0x819d160, e=0xbf9617cc) at kernel/qapplication.cpp:2635
#32 0xb6b79350 in QApplication::notify (this=0xbf961f0c, receiver=0x819d160,
    e=0xbf9617cc) at kernel/qapplication.cpp:2421
#33 0xb72fdced in KApplication::notify () from /usr/lib/libkdecore.so.4
#34 0xb6b0a15d in QApplication::sendSpontaneousEvent (receiver=0x819d160,
    event=0xbf9617cc) at qapplication.h:523
#35 0xb6b0580b in QETWidget::translateMouseEvent (this=0x819d160,
    event=0xbf961c08) at kernel/qapplication_x11.cpp:4301
#36 0xb6b03cf1 in QApplication::x11ProcessEvent (this=0xbf961f0c,
    event=0xbf961c08) at kernel/qapplication_x11.cpp:3478
#37 0xb6b1d473 in QEventLoop::processEvents (this=0x80fa678, flags=4)
    at kernel/qeventloop_x11.cpp:192
#38 0xb6b918b7 in QEventLoop::enterLoop (this=0x80fa678)
    at kernel/qeventloop.cpp:198
#39 0xb6b917da in QEventLoop::exec (this=0x80fa678)
    at kernel/qeventloop.cpp:145
#40 0xb6b778d5 in QApplication::exec (this=0xbf961f0c)
    at kernel/qapplication.cpp:2758
#41 0x0805b711 in ?? ()
#42 0xbf961f0c in ?? ()
#43 0x00000001 in ?? ()
#44 0x00000000 in ?? ()