Problem with QTextEdit

[jogeshwarakundi]

Hi,
I am using QTextEdit on Qtopia 4.3.0.
I set it to readonly.

QTextEdit* lTextEdit       = new QTextEdit(this);
    lTextEdit->setReadOnly(true);
    lTextEdit->setText("You and me are one and same.\nYou and me are one and shame.\nYou and me are one and dame.");
    lTextEdit->setGeometry(10, 140, 80, 80);
 
    connect(lTextEdit, SIGNAL(textChanged()), this, SLOT(BtnClicked()));

QTextEdit* lTextEdit       = new QTextEdit(this);
    lTextEdit->setReadOnly(true);
    lTextEdit->setText("You and me are one and same.\nYou and me are one and shame.\nYou and me are one and dame.");
    lTextEdit->setGeometry(10, 140, 80, 80);

    connect(lTextEdit, SIGNAL(textChanged()), this, SLOT(BtnClicked()));

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All is working fine like being unable to modify it, select the text etc.
Problem is that when the widget attains navigation focus (the whole textbox and scrollbar are highlighted) i type a space or any other alphanumeric key, the text is lost. I tried searching but to no result
please help me out