[ubuntu] Twinview: desktop bigger than screen

view full story

http://ubuntuforums.org – With 9.10 and an nvidia 9400M graphics board I want to use twinview The only two things are that the resolution of my external monitor (1920x1200) is no choice in the nvidia tool, and that the desktop has a larger resolution than my small notebook screen (1280x800). The latter makes that my mousepointer 'drops' off of the bottom of the screen. It is as if the pixels up to the resolution of my external monitor are still below the display of my laptop. How can I make the mousepointer stop at the bottom of the smallest of the two displays (and not make it go up to the s (Hardware)