--- qt-everywhere-opensource-src-4.7.3\src\gui\dialogs\qwizard_win_p.h	2011-03-30 15:19:04.000000000 +0300
+++ qt-4.7.3-mingw\qt\src\gui\dialogs\qwizard_win_p.h	2011-07-18 14:54:56.027374400 +0300
@@ -94,7 +94,7 @@
     void resizeEvent(QResizeEvent *event);
     void paintEvent(QPaintEvent *event);
     QVistaBackButton *backButton() const { return backButton_; }
-    void disconnectBackButton() { if (backButton_) backButton_->disconnect(); }
+     void disconnectBackButton() { if (backButton_) backButton_->disconnect(); if (backButton_->testAttribute(Qt::WA_StyleSheet)) connect(backButton_, SIGNAL(destroyed(QObject*)), backButton_->style(), SLOT(widgetDestroyed(QObject*))); }
     void hideBackButton() { if (backButton_) backButton_->hide(); }
     void setWindowPosHack();
     QColor basicWindowFrameColor();