No, on the back of the monitor there's a button to switch between DVI, VGA, and HDMI, so I just have the 360 plugged into the VGA and the computer plugged into the DVI.
i could dual moniter setup but then i would only be able to have both screens at 1024x768, The resolution for the new moniter is 1280x1024 i made it so that the external moniter is my main monitor everything is on that one and the moniter from my laptop is turned off
I did this with a program on my computer that was factory installed onto my ibm laptop