Somehow kguitar crashes when trying to configure.
Here is the crash dump:
Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1".
[Thread debugging using libthread_db enabled]
[New Thread -1233197376 (LWP 16582)]
[KCrash handler]

6 0x08268f40 in ?? ()

7 0xb709c4cd in QObject::QObject () from /usr/lib/libqt-mt.so.3

8 0xb702bcbd in QLayout::QLayout () from /usr/lib/libqt-mt.so.3

9 0xb707eeb8 in QBoxLayout::QBoxLayout () from /usr/lib/libqt-mt.so.3

10 0xb707ef59 in QVBoxLayout::QVBoxLayout () from /usr/lib/libqt-mt.so.3

11 0xb63fda77 in Options::Options () from /usr/lib/kde3/libkguitarpart.so

12 0xb63b82b4 in KGuitarPart::options () from /usr/lib/kde3/libkguitarpart.so

13 0xb642f5a2 in KGuitarPart::qt_invoke ()

from /usr/lib/kde3/libkguitarpart.so

14 0xb7099893 in QObject::activate_signal () from /usr/lib/libqt-mt.so.3

15 0xb709a338 in QObject::activate_signal () from /usr/lib/libqt-mt.so.3

16 0xb7a033d9 in KAction::activated () from /usr/lib/libkdeui.so.4

17 0xb7a45ca2 in KAction::slotActivated () from /usr/lib/libkdeui.so.4

18 0xb7b4387d in KAction::slotPopupActivated () from /usr/lib/libkdeui.so.4

19 0xb7b43b41 in KAction::qt_invoke () from /usr/lib/libkdeui.so.4

20 0xb7099893 in QObject::activate_signal () from /usr/lib/libqt-mt.so.3

21 0xb74258ec in QSignal::signal () from /usr/lib/libqt-mt.so.3

22 0xb70b9842 in QSignal::activate () from /usr/lib/libqt-mt.so.3

23 0xb71bffd3 in QPopupMenu::mouseReleaseEvent () from /usr/lib/libqt-mt.so.3

24 0xb7a09e1e in KPopupMenu::mouseReleaseEvent () from /usr/lib/libkdeui.so.4

25 0xb70d0681 in QWidget::event () from /usr/lib/libqt-mt.so.3

26 0xb7030af0 in QApplication::internalNotify () from /usr/lib/libqt-mt.so.3

27 0xb7032cae in QApplication::notify () from /usr/lib/libqt-mt.so.3

28 0xb7811cd2 in KApplication::notify () from /usr/lib/libkdecore.so.4

29 0xb6fc327d in QApplication::sendSpontaneousEvent ()

from /usr/lib/libqt-mt.so.3

30 0xb6fc1bbf in QETWidget::translateMouseEvent ()

from /usr/lib/libqt-mt.so.3

31 0xb6fbffcc in QApplication::x11ProcessEvent () from /usr/lib/libqt-mt.so.3

32 0xb6fd71a4 in QEventLoop::processEvents () from /usr/lib/libqt-mt.so.3

33 0xb704b1ce in QEventLoop::enterLoop () from /usr/lib/libqt-mt.so.3

34 0xb704afde in QEventLoop::exec () from /usr/lib/libqt-mt.so.3

35 0xb7032699 in QApplication::exec () from /usr/lib/libqt-mt.so.3

36 0x0804fd15 in main ()

And here is the console output:
kguitar: TrackView::initFonts
KCrash: Application 'kguitar' crashing...

This happens under Kubuntu gutsy
Qt: 3.3.7
KDE: 3.5.8

Just wanted to let you know, Best regards and nice work

           Vispo