Slow start download in Windows Mobile

Hello all,

I'm developing Qt on Windows Mobile 5.0.
I downloads data, immediately right after application starts/

Code:

---

QNetworkAccessManager *manager = new QNetworkAccessManager(this);
    connect(manager, SIGNAL(finished(QNetworkReply*)), this, SLOT(replyFinished(QNetworkReply*)));
    manager->get(QNetworkRequest(QUrl("http://blankwebsite.com")));

---

However, when application is launched, QNetworkAccessManager does not start to download data immediately. Instead, it waits for some 5-6 seconds before starting to download. However, if user puts his finger on the screen then application starts to download immediately.

It's very weird. I wonder is it normal or any body has the same problem?
I have this problem on simulator and device (HTC HD2 mini).

Thanks

Hai