Most laptops have a button or switch that will change the display to copied, instead of seperate. For most IBMs and Toshibas, it's Fn+F4 or Fn+F5. (it's a picture of monitor above the proper F-key.
Also, closing the laptop will often cause screen two to start displaying screen 1's information.
And, if neither of those work, boot windows in safe mode. It doesn't have dual monitor support in safe mode, so both displays have to be the same. ;-)
