Well after having this set for about 4 months I decided to purchase the the Avia DVD and calibrate it myself. The first thing I did was record all the values in the service menu so I could put it back to the original configuration if necessary. Next I downloaded a spreadsheet of another users values for the 34XBR910 which I was told was 90% correct. I now have a horrible Geometry error in the Lower Right corner, and the HD signal that comes in through Video 7 (DVI) flickers dark and light and looks horrible. I have a Composite connection through video 5 that looks decent but still has geometry errors. I tried to set the values back to the ones that I recorded and when I Write them, no luck. It still looks bad. Is there anything that I can do to correct this? Should I just call to have a Sony Service rep come out and fix it? Should I just have somebody in the DC area ISF calibrate it? Thanks for your help, I am very sad I ruined this, I have been saving for months to purchase this.