Hey. I have a 5 yr old computer HP Pavillion a6683w. I am not very knowledgeable with computers specs. Is there any way someone could tell me what graphic card I can actually get with this computer. http://h10025.www1.hp.com/ewfrf/wc/document?lc=en&dlc=en&cc=us&docname=c01581193#N330 has all the stats. I am also curious if "Operating System" is another problem that I will need to address or if it just appears with the graphic card being unsupported.