[koenieee]

Have you seen my Edit?
It is working now, with your font.

Maybe it would be kind to add a button to restart nickel, using this script for example:
http://pastebin.com/gEuQpaU5

and this piece of code:

void App::on_pushButton_2_clicked()
{
    QMessageBox msgBox;
    msgBox.setText("Wait for nickel");
    msgBox.exec();
    QProcess *proc = new QProcess();
    proc->start("/home/admin/nickel_start.sh", QStringList());
     QApplication::quit();
}

This works, but after nickel is started the Wifi isn't working (doesn't make connection), but you can read books