I have a hp pavilion, a708.uk . system number pn115aa, computer. It has a built in to the mother board graphics card The fault allows no video display whatsoever. I have tried a cd with all the drivers and a cd of the operating system, Windows xp pro. It doesn't have floppy disc support. It has a slot [brown ] for a graphics card and I want to fit one. Where can I buy and which one. Any help gratefully received.