[It is two screens from the laptop. I got it now to where the mouse does scroll from the laptop screen to the PC screen (no computer attached, just a computer monitor), but for some reason I am not able to see anything but my wallpaper on the PC screen. I want to be able to interchange programs between the two screens (i.e. Outlook on one screen and a different program on my laptop screen, while the mouse moves between both screens.
You should be able to drag a window across to the other screen. Most current applications remember where they were last, and open again in that same place.