This is the problem - there is an area about 5 inches down from the top of an 8ft wide screen, about 2 inches deep, which flickers. If looking at vertical lines going through this area, the effect is like a comb - the line jitters from side to side. This ONLY happens with R2 1.78/1.85 ratio dvds. R1 dvds of the same ratio are fine, as are 2.35 ratio films of all regions.Happens on S-VID and Component cables. Anybody help ? - could it be as simple as cleaning the dvd lens ( although it has only played about 10 films) - or is it more involved. Anybody else witnessed his effect ? - oh, by the way - can`t see the problem at all on a 32" TV ! Equipment - Tosh 900e , Sim2 HT300+ , dENON 3802. Grateful thanks in advance !