I have two laptops that are exactly the same, Lenovo 3000 C200, and only one
video card is in each one, Mobile Intel(R) 945GM Express Chipset Family.

One has XP the other one has Ubuntu.

On the one with XP, I have an external monitor and it is set up as a separate
display, I can play a movie on the external and do other stuff on the laptop
screen.

I tried another monitor when I had 9.10 on the Ubuntu machine. I could not get
it set up that way, it always would revert to being the same as the laptop
screen.

I now have 10.04 on here, maybe I will try the monitor again.