laptop won't dual display

[Karaoke John]

Hi all
I would be interested in that question too! Don't most laptops use an onboard graphics chip mounted on the motherboard? My Sony Viao Laptop has a ATI Radeon 9700 graphics chipset I don't think that It is a separate dedicated card.
Luckily I have the dual display feature and mostly don't have any problems doing dual screens. Occasionally I will run the laptop with the tv not hooked up and It will change my settings but that is easily corrected now that I know how too.
I also have a Docking Station Which has every connection I need from audio, Video, S video, and USB and Firewire to Coaxial.
The Geek squad at Best Buys told me that Laptops You get what you get and video is practically impossible to upgrade without changing Motherboards if that is at all possible.
John