Upgrading my laptop with another graphcs card,pllease help

[the seeker 92]

Hello,
i have a acer aspire 5740 notebook with Intel core i3,330M,2.13Ghz,1066Mhz FSB and a graphics media accelerator HD,4GB of DDR3 RAM,320 GB HDD,I can understand GMA HD is no of use for graphics but i need to know can i upgrade my laptop with another graphics and if yes, what is best option at present and will it cause any problem to my laptops other features if i add another graphics card

 

[mindless728]

i would wager not as very few laptops have graphics cards that can be swapped and usually only the highest end ones have this ability

and in your case it would have to be a laptop with switchable graphics that doesn't have the main gpu in the system