After upgrading my 3100 to W7 I want to upgrade the video. An internet search for compatible cards led me to the Jaton Video-339PCI-HLX. I ordered one online. After removing the 3100 cover it looks like the video is integrated into the mb. I've seen articles where people have upgraded their 3100 video so I'm confused. I hope I'm not sol with a dud purchase. Any instructions on how to replace the video are greatly appreciated. Thanks.