#0  0xb75d7417 in QFormLayout::sizeHint () from /usr/lib/libQtGui.so.4
#1  0x080989f6 in OptionsView::addOptions ()
No locals.
#2  0x08091398 in VolumeWidget::VolumeWidget ()
No locals.
#3  0x0808644d in CentralWidget::addDevice ()
No locals.
#4  0x0808849f in CentralWidget::CentralWidget ()
No locals.
#5  0x0807c05f in MainWindow::MainWindow ()
No locals.
#6  0x0807a12e in main ()
No locals.