Small white dots have started to appear on our screen, first, on, then a couple days later 2 more, and today we have 6 small white dots on our screen. What is happening to cause this condition?

Your problem is that the DMD device is failing. You're in luck, though. Mitubishi has recently released a replacement DMD device in order to keep repair costs down for the consumer. Take your TV to an authorized Mitsubishi servicer for repairs.

When dust builds up on the DLP heatsink, the DLP chip gets too hot and begins to fail (i.e., the white dots). By replacing the DLP chip the problem can be solved. Youtube has videos that give step-by-step instructions on how to do it. Be sure and clean the DLP heat sink and test the small fan that bows cooling air across it. If the fan isn't working, or the heatsink is not cleaned. The new DLP chip will have a short life.