We purchased a 65" DLP Mitsubishi tv in March 2008 from HH Gregg. Screen started turning green with blue hues making it unviewable. It would be fine, then go green and go back and forth. Now it stays green. We called tech out as is under warranty. Thought cable box at first but was able to rule that out. Tech says thinks it is light engine motor. Can't seem to get Mitsubishi to ok the fix or replace the tv ( which is what the tech recommends). Anyone have any ideas on what we should do next? Thank you in advance for your help!!