QtQuick1 translucent window becomes completely invisible when using mstsc (16 bit color depth display)

I use mstsc(Microsoft terminal service client) to connect to a machine of Windows XP, and run QtQuick1 programs like this:

import QtQuick 1.1

Rectangle {
	width: 100; height: 100
	color: "red"
}

Normally it works correct, but when I use 'setAttribute(Qt::WA_TranslucentBackground)', and runs the program remotely, it runs with no window shown.

QDeclarativeView view;
QPalette palette = view.palette();
palette.setColor(QPalette::Base, Qt::transparent);	
view.setPalette(palette);
view.setAttribute(Qt::WA_TranslucentBackground);
view.setWindowFlags(Qt::FramelessWindowHint);	
view.setSource(QUrl::fromLocalFile("main.qml"));
view.show();

I can find the program running because it is on the taskbar, but it just has no window shown. I use spy++ and find that the program actually does have a window, which I can't see.

It runs correctly when I run it locally.(without mstsc)

Besides, comment 'setWindowFlags(Qt::FramelessWindowHint);' will make the window visible, but I usually use FramelessWindow.