Well, I'm not Gordon, but I'll see what I can answer. See http://www.progressivescan.co.uk/interlaceddisadvantages.shtml The rainbow effect is like a very, very brief and quite small flash of colour on a part of the screen. Some people are more sensitive to it than others. Over 15 minutes of viewing the Sim2 HT200 my wife noticed it twice - I was distracted by it about every 5-10 seconds. It seems to be more noticeable in high contrast scenes; especially black and white where I noticed it several times per second to once every two or three seconds. Only DLP projectors exhibit this phenomenom and some are better than others (the HT200 is meant to be one of the better ones). If the projector cannot be placed in its optimum position, you might find that the top of the projected image is wider or narrower than the bottom. This can be corrected using either optical or digital keystone projection. Optical is better as digital can introduce artifacts. The Sanyo projects a beam that is roughly parallel to the ground at the bottom, expanding in height at the top. You can either mount it on a table roughly level with the bottom of the screen, or upside down (e.g on the ceiling) roughly level with the top of the screen. I think the Sanyo only has digital keystone correction. I would presume component, followed by s-video followed by composite. You can work it out from the following information: http://www.sanyo.de/english/download/plv-30.pdf By my reading of the document, a 70" width picture would require the projector to be between 2.8m and 3.4m from the screen. As I said earlier, you would want the Sanyo level (actualy 82mm inside at 70" distance) with either the top or bottom of the screen. Err, I think so... You would want a 4:3 screen for the Sanyo. Gordon could give you a more accurate quote, but you're looking at around £150 for a 7" diagonal, manual pulldown screen or £550 for an owl electric. Dunno about 11. The Sanyo should be used with a 4:3 screen. If you used a 16:9 screen and set it up for 16:9 films you would find that it projected 4:3 material above and below the screen, unlike some other projectors that can re-scale a 4:3 picture inside the 16:9 part of the display. That's the rumour Several of us on this forum are waiting with baited breath to hear what Chris has to say. I had loads of questions when I started looking at projectors. This forum is very useful and so is a dealer that you can respect and trust. Once I decided that I was happy to buy from Glasgow I arranged a demo and fired off a load of questions to Gordon. Some of his answers generated more questions from me, as did seeing the projectors "in the flesh". Hope this helps, Liam ------------------ "Do you hear that, Mr. Anderson? That is the sound of inevitability."