Kasatome

I seem to have a snag in using this app. Function wise it works great. The mouse works as does the gamepad and movie player. The problen I seem to be having is that I can only see the mouse cursor and not the desktop to go with it i.e., background, icons and windows. I'm connected fine as I can control the PC like I'm using a wireless mouse, but it would be cool to see it. I'm wondering if it's because i have a DSi not a lite or original?