Odd DVD playback issue on Vista

[Ghoulish Delight]

I've upgraded the graphics output on the server connected to our LCD TV from the onboard graphics chip to an MSI with HDMI high def output, which should allow us to reduce our entertainment center by 1 component (bye bye DVD player).

So far so good, save one very slight, but a little bit annoying issue. When playing a DVD in full screen mode, the image isn't centered. It's right justified. I've gone back and forth ensuring that it isn't a matter of screen alignment. It's not, nothing is being cut off. It just lines the image up with the right side of the screen, leaving a small blank gap on the left (confirmed by screenshot below). And it happens whether I'm using Windows Media Player, Windows Media Center, or Real Player. And with different movies.

fullscreen.jpg

It's not enough to deter me from using it as a DVD player, but if anyone has any idea how to fix it I'd appreciate it.