Steve, what you are referring to is called "Convergence". I'm not sure what the proceedure is for converging this TV, but a search for "Converging Sony Projection TV" might help you. Good luck!
I have a sony kdf-50e2000, just replaced the lamo after 2 years of use and noticed about a 4 inch redish/amber stain on th etop of the screen. any ideas on possible fixes. This was the repacement on a 51" Sony that they exchanged for me 2 years ago.