My brother's family has an XPS 410 desktop. The display recently is all messed up - showing lots of multi-colored blocks and the colros are wrong. I updated the drivers with no change. If I hook a different computer up to the screen, the display is perfect. I suspect that the video card needs to be replaced. I'm not sure of what to look for to replace it. His family does no gaming at all, so he just needs something inexpensive that will do the job. The current video card is a NVIDIA G 7300. Any suggestions on what to replace it with? Thanks!