Well, I think I have run into the VPOS glitch people used to talk about on the older Toshibas: trying to adjust VPOS with the component input active, getting no response from multiple button presses, and then discovering one or more of your inputs won't work. For me, I lost the component inputs for progressive signals only. Strange, but self-diagnostics tells me the problem is in QV01 and QV01S, which I am told are in fact controllers for the rear inputs. Now I am faced with the unsavory task of performing a very risky QA02 reset (and if that doesn't work, getting a new EEPROM installed). Before I do, though, I was wondering if anyone knows whether I need to write down all the parameters in DESIGNER mode or are the SERVICE menu parameters enough? Any other advice before I take the plunge? Thanks!