Hi, was looking at a new computer that has one ATI Radeon HD4870 video card in the desktop. The video card has 2 dvi slots in the back of the card and the sales rep said it can handle 2 monitors. I have 2 - 24" monitors. Will that one card handle both monitors without any stalls or excess stress on the video card? I have a hunch I may be safer with two. Anyone with experience in this would be appreciated. Thanks.