I'm at the end of my rope here.
I have a new NTPC build (granted, on a tight budget, but new nonetheless). I installed Windows Vista RC1 because I really liked the new Media Center, and didn't see the point in buying a new license of XP/MCE when Vista is just around the corner. The only hardware worthy of note is that I'm using an nVidia 6200 LE for the primary display.
I'm running a DVI->HDMI cable from the 6200 into a Magnavox 50" plasma, model 50MF231D.
When I configured Media Center, everything went perfectly. Still is, actually. I told it I wanted to run at 1080i, and it automatically accounted for any overscan, and gives me a perfect picture.
The Windows desktop, however, is a completely different story. I've tried every native resolution, and can only get an acceptable display at 640x480, 800x600, and 1024x768 modes. Everything else results in overscan that crops off the entire taskbar at the bottom, window titlebars at the top, and a full row of icons on the left/right edges.
I've tried Powerstrip, but have been unable to find ANY setting that improves on this in any notable way. Further, I am unable to create a resolution spec that isn't progressive. (I really don't like interlaced modes for the desktop. Too much jitter.) I've even tried "resolution-in-resolution" without any success at all.
I know in XP there are overscan correction options built into these video drivers, but anything resembling these functions seem to be completely AWOL in Vista x64 versions. I understand that we're still real early in the game here, but I'd rather not wait what will likely be months before an acceptable driver hits the 'net. There MUST be a way to at least get a 720p resolution to show without overscan.
Can anyone give me any tips at all?