Im in Birmingham, and since day one I've used the D-SUB connector with my HTPC and have never seen banding whatsoever. I would call Sony as it sounds like a faulty machine to me. Also I tried the svideo connector out of curiosity and didnt notice any banding, however I did notice a severe degradation of image quality compared to viewing media by my HTPC whether DVD or cabletv via
www.dscaler.org (but then again most people say it compares with >£7000 hardware scalers anyway..
James
p.s I wonder if its to do with the internal scaler of the Sony?. The CX1 is natively 1024x768 which I have always run my PC at so maybe the internal scaler is causing the banding issue?, but it sounds like a fault to me.