I have a GeForce 7800 GT if that helps.
That helps. If you have the latest Forceware drivers installed, you'll have an option in your NVIDIA Control Panel under "Display" that says "Change flat panel scaling." Select this option, and set it to "Use NVIDIA scaling with fixed-aspect ratio." This will set your graphics card to do the scaling while preserving aspect ratio. 4:3 resolutions will fill the vertical span of your screen with black bars on the left and right.
Thanks, I had a feeling you guys would be more helpful than Samsung, lol.
This is a quote from their support on the subject:
"Thank you for contacting Samsung E-Mail Support.
Unfortunately, changing the resolution on a wide screen monitor to a full screen resolution will not allow you black bars. It will just convert your image to fit the screen which will cause the picture to be distorted. We suggest purchasing a full screen monitor to receive the best picture quality. If you would like to speak with a live customer care representative give us a call at 800 SAMSUNG.
Have a great day!"