Re: HD on an Infocus X1?
This is kind of technical to explain, but I think I can do it if you bear with me here.
The Infocus X1 or X1a will do HD, however, because it is not a native HD projector, it will need to do some scaling of a picture, and you'll lose a reasonable amount of quality in doing so. Because the X1 is a SVGA 800 x 600 projector, it has a 4:3 aspect ratio, but HD content is presented in a 16:9 aspect ratio (widescreen), meaning that when you display a picture, it will have large black bars on the top and the bottom, or possibly have the edges cropped, losing something like 33% of the image, but that's an off-the-top-of-my-head estimation. Here's some photos I took from NASA's webpage that will better explain it.
The first one is what a native 720p picture would look like. (It's scaled down from 720p because 720p is really huge. 1280 x 720 pixels)
It's a nice 16:9 image:

Now, if we were to take that same image/video and put it on an infocus X1, it would scale to fit the image inside the X1's native resolution which is 800 x 600:

One other option that might be available is to full-screen the 16:9 image and lose the picture contained on each end of the image. Again, my rough estimation earlier was that 33% of the image is lost:

So yeah, there's how it will look. It's not too bad, really, but you do lose some quality. Also, the X1 does not have a component RCA input, so you'll have to get an adapter to go from Component RCA to VGA (a.k.a. D-sub 15; a.k.a VESA). The one from Infocus is on their
site here. You can find generic ones that do the same thing from probably any of the resellers listed at the top of this forum.