Matt, I don't know what kind of TV you have and I was too lazy to go back through the thread to find out but this will probably apply anyway. When I first bought the Sony Wega III I too wanted to set it up with a computer via DVI. This was about three years ago. I was able to achieve 1:1 pixel mapping but only after a lot of research and work. The final solution was to use Powerstrip to provide the TV with the proper resolution and timings AND go into the service menu of the TV and adjust several hidden parameters to eliminate the overscan. Once this was all completed the system work swimmingly. There have been huge advancements in graphics drivers since then and you may not have to use powerstrip but you might try it anyway. It has some great features that seem to work well for these types of applications.