First app issues on Belle FP1/2

Hi,
this is my first post here and also my first qt app. This app is a simple qt webkit experiment that loads a local html page (that contains ajax calls to remote urls). No problem in the qt creator simulator, but when I launch it on the phone (nokia 700) it only shows the "waiting pointer" and then a black screen is shown (sometimes it's trasparent as I can see icons on background).
In Belle FP1 I discovered that after installing qt-quick-components 1.1 on the phone the app worked beatifully. But after the FP2 update if I install that library the new camera app stop working (black screen) and I have to deep reset the phone to get it back! So I suppose there is a kind of conflict and installing qt-quick is not the right solution.

Anywhere i post a bit of code and hope someone can help me...

main qml:

[CODE]import QtQuick 1.1
import com.nokia.symbian 1.1
import QtWebKit 1.0

Rectangle {

Flickable {
id: flickable
width: parent.width
height: parent.height
contentWidth: webView.width
contentHeight: webView.height
interactive: true
clip: true

WebView {
id: webView
url: "qrc:///html/test.html"
preferredWidth: flickable.width
preferredHeight: flickable.height
onAlert: console.log("WebView onAlert: " + message)
settings.localContentCanAccessRemoteUrls: true
javaScriptWindowObjects: QtObject {
WebView.windowObjectName: "qml"
function closeApp() {
//console.log("This call is in QML!");
//QmlApplicationViewer.hide();
Qt.quit();
}
}

}

}

}[/CODE]

main.cpp:

[CODE]#include <QtGui/QApplication>
#include "qmlapplicationviewer.h"
#include <QtNetwork/QNetworkProxyFactory> //aggiunta da me

Q_DECL_EXPORT int main(int argc, char *argv[])
{
QScopedPointer<QApplication> app(createApplication(argc, argv));

QNetworkProxyFactory::setUseSystemConfiguration ( true) ; //aggiunta da me

QmlApplicationViewer viewer;
//viewer.setProperty("orientationMethod", 1);
viewer.setMainQmlFile(QLatin1String("qml/test/main.qml"));
viewer.showExpanded();

return app->exec();
}[/CODE]

i have similar problem as well, and i developed a qt qml app, and it run well on other devices, when it runs on 808, it shall 'waiting' sign, and takes 5-6 seconds, still black screen.

do you have further method now?

Still no solution for me...