Help with upgrading video card?

You did not give enough information. We need to know the following: 1. Do you have a PCIE slot? How many pins? 2. What is your power supply like? 3. What bit version of vista are you running?|||if u already have an external(dedicated) video card then pull that out.(google it to see what they look like) then go to best buy and but any one u want. then plug it into the pcie express 2.0 slot and attach any power wires if needed. this is a simple explanation|||It depends on the function of your mother board.|||All depends on what your mother board supports as there are different types of ports for video cards! For that computer you would probably want anything above a 770W+ power supply to run glitch free.