Apologies if I'm being a bit thick, but I'm having trouble understanding how a projector with a 16:9 panel would work with a 4:3 screen. I currently have a Sanyo PLV-30 projecting onto a 100" diagonal 4:3 screen. I would like to replace it with a Panasonic PT-AE300 (which has a 16:9 panel), so I downloaded the brochure to check distances etc. I notice from the brochure that in the image size/distance table there are entries for 4:3 and 16:9. Does this mean that the AE300 can be set-up for both a 4:3 and 16:9 screen? Assuming it does, if I set it for a 4:3 screen will I lose the benefits of the 16:9 panel i.e. will it just be using the centre portion of the panel and show 16:9 material letterboxed in this centre region rather than using the whole panel? Basically all I want to do is place the AE300 in more or less the same position as I have my PLV-30 and be able to produce a 4:3 image that is 100" in diagonal and which uses the whole 16:9 panel for 16:9 material. If anyone can advise me as to whether this is possible I would be very grateful.