I'm not well versed on the many video concepts that surround the high definition format. In spite of much research on deinterlacing, 3:2 & 2:2 pulldown, scalers, etc. on this forum and others, I'm not sure I have it straight. It's a lot to process for the newly initiated. Well, I've begun to put together a modest system. The next purchase will be a new display device. While combing over the alternatives among DLP, LCD, RPTVs and plasmas, I was exposed to the idea of basing a HT system around the PC. As it turns out, I have a video card based on the Nvidia 5900XT engine with a DVI output that may be useful in this capacity. I'd like to use my PC instead of purchasing a progressive-scan DVD player if I can to minimize expense. Which brings me to my question: If I output video from the internal DVD player of the PC through the DVI output of my video card, is it progressive or is it still interlaced? If it is still interlaced, how can I change it to progressive without relying on my display's deinterlacer? It seems my PC should be able to do it better since it has more computing power on which to draw. And finally, how do you equate PC resolution to HD resolution? For instance, if I display a DVD from my PC at 1280 x 1024 resolution to a compatible front projector, is that considered HD, and if so, which setting (480p, 540p, 720p) is it equal to?