I have sent an email to Mitsubishi Customer Service.  No response yet, but I'll let you know if I hear anything.  This sounds like a great class action suit for one of you lawyers out there!

I called Mitsubishi Customer Relations yesterday because of the green blinking light on my WS-55511. Their Parts Dept said just prior that the DM Module for my TV is no longer available even though it's just 6 yrs old. Last week I soldered 7 new caps onto the board even though the old ones seemed fine but the blinking remained. I then called the local Mitsubishi Factory Service Center, waited a week before the tech came out and verified the blinnking green light, said I needed a new DM module (duh), and after they find one they'll charge $200 to install it, but wanted $85 now for the service call. So next Customer Relations said they'll perform a search for the part and let me know in 7-10 days what they find!?
I am no longer impressed with Mitsubishi "quality" or "service".