VoiceOver Bug with Mac OS 10.5

There is a problem with voiceover usage and Qt library under Mac OS X 10.5.4 (Leopard). VoiceOver works only in startup dialog of our application and does not work in others dialogs. You can reproduce issue with follow steps:

1. Take example $$[QT_INSTALL_EXAMPLES]/dialogs/licensewizard

2. Modify it to turn on accessibility support.

2.1 add to *.pro file QTPLUGIN += qtaccessiblewidgets
2.2 add to main.cpp

#include <QtPlugin>

Q_IMPORT_PLUGIN( qtaccessiblewidgets )

2.3 add accessibilitynames and accessibilitydescriptions for
widgets

3. Build and start application, voiceover on first page works well, but
after proceeding to next page via continue button voiceover doesn't work
for name and email address text fields.

If you change start page of wizard - voiceover will work on it and won't
work on another pages you go to.