I've been reviewing this site for about 3-4 weeks. I bought a Sony40xbr800 4 weeks ago and hated the geometry problems. Color was great. Had Sound Advice pick up the set and deliver a new Samsung hlm507w. I've made tweaks here and there following the guidelines of many threaders thru the service menu. Every thing seemed to work well especially Gamma 5. Them I meandered over the the Autocolor setting in the options submenu and set it. What does this do to the original color temp? I did photograph all of my service menu items prior to making any adjustments as advised by many threaders. But the picture does not seem quite the same. All values were set to original values manually ( i used my digital pics of the original settings). And performed another autocolor. Color looks good, but somethings different. Magenta is a noticable issue. I ordered a service manual from Herman Panson in Miami. Should recv 4-15-03. Help with the autocolor if you know.