QMessageBox inside a QGraphicsScene

[stukdev]

Hi, i have more QGraphicsPixmapItem inside a QGraphicsScene. I Create a signal on these object so i can know when a QGraphicsPixmapItem is clicked. If i try something like that:
@
void Home::pixmapPressed(quint16 id)
{
qDebug() << "id: " << id;

switch(id)
{
    case 0: 
        break;
    case 1: 
    case 2:
        break;
}

}
@
The result is the id of the pixmap and all works well.
But if i change is something like that:
@
void Home::pixmapPressed(quint16 id)
{
qDebug() << "id: " << id;

switch(id)
{
    case 0: 
        formManager(FORM_NEXT);
        break;
    case 1: 
    case 2:
        QMessageBox::information(this,"test","test");
        break;
}

}@

If i click the pixmap 0, call the formManager and this is ok. But if i click 1 or 2 i get the QMessageBox and after i close that all area of a QGraphicScene call a pixmapPressed with the latest id that open the QMessageBox!!! This is very strange!