I'm a novice and need your help. Ihave an old dell dimension 4700 with Intel 82915G/GV/910 GL Express Chipset and wish to purchase a used LCD monitor. Do I need to worry about compatibility? I'm considering buying a used Samsung 912 N and don't know what tech specs to evaluate whether I can just plug in the monitor or if I need to upgrade my graphics card or driver. If I do need to upgrade, I'm not sure how to find out if my PC can accomodate the needed upgrade, or if it's totally out of the question because of its limitations. Can anyone help me? Thanks!!