Maximising on my second screen

[manofmiracles]

Okay, so I have a laptop with a monitor plugged into it. Every time i attempt to play something via VLC player the video plays fine and plays in the vlc player that you typically see in the resizable screen. But it also plays maximised on the opposite screen to which i have vlc player open. If i switch vlc player to the other screen the maximised screen switches with it.
I have no idea how to turn this off and it is driving me crazy, can anyone help?

[kknox]

I The external/projector port of a laptop can not be setup as a SECOND monitor. you will need a device; like a USB video card and driver to acomplish what you want to do.