How do i update video card for windows vista?

i want to install Second Life but it says i have to update my video card and im not even sure what it is|||A video card is hardware. You need to buy and install a better one.|||Hit start. Go to settings and look for your video settings (it may be hidden if your not using classic settings). Once you find your video card, right click on it and hit properties. There should be a tab that says "Update driver". Click on that so it checks the internet for an updated driver for your card. If that doesnt work, your laptop may not have a video card that is capable of working with that program and you may not be able to run it on that computer.|||If you have a laptop/ notbook you may not be able to, for a desktop you puchase a new compatible video card and install it in the desktop. Of course you would need to know what make and model system you have to proceed further.