Yes, HDTV cards are meant in part to have their pictures be viewed on a computer screen. Thus, you can set it up to work fine with your projector. Note, the picture will have to be scaled a bit - the closest to hdtv resolutions your projector supports is 720p, which is 1280x720 - that'll have to be scaled down to fit within 1024x768 (as will 1080i, 1920x1080). I, however, am using a real HDTV, so someone else should be able to give you more details about it.