I have a HP NC6000 laptop and a HP 17" TFT screen and i have an ATI Mobility Radeon 9600 series display adaptor. currently my laptop is connected onto a port replicator and i have the sceen plugged into the DVI port on the port replicator and it used to be plugged into the normal monitor port. what i want to do now is to have my 17" monitor showing a movie or a spreadsheet or something else while i have another program working on my primary laptop screen. well... the technically challenged person i am knows what i want but can't get the stupid pc to do it. i have set my display setting to extend my desktop to the 17" monitor but all it does is show me the background wallpaper... how do i get it to do what i want it to? all input is appreciated.