I have a Power Mac G5 1.6 with the GeForce 5200 AGP graphics card that has an ADC and a DVI port. I would like to use DVI as an output but when I plug a DVI monitor in I get no video. If I use a DVI to VGA adapter it works fine but not at the full 1920x1200 resolution, it only gives 1920x1080 as a similar option. If I use an ADC to DVI adapter I also do not get any output. Any help on how to get it to output to a DVI monitor would be greatly appreciated.

-Ben