On a mitsubishi tv does the bulb going out have anything to do with signal board adj comp?

Mitsubishi DLP HDTV's all have a common problem, I found out the hard way. When you pull the light and box embly out take a flash light and look into the opening. You will see the bulb blower fan (cooling fan) opening towards the back. On my 57" HDTV it was on the right side when viewing from the back. Next locate the matching area on the bulb embly that lines up with the blower fan when installed. On my box it appeared to be a galvanized peice of metal measuring 5/8" X 2.5". Upon further messing around I wondered why the blower fan opening would line up with a dead end plate. I scratched at the plate and compressed heated dust fell off revealing a tight meshed screen that I suppose was installed to keep large crap away from the bulb. I went off on the service tech about the poor design and that this was my second bulb to burn out. The 1st one burned out while I was still under warranty. The new bulb housing box has a modified fan opening that has a piece of metal with 1/8th" holes rather then the fine mesh screen. Get on the Mitsubishi HDTV web site, talk with a reasonable service person and ask for a customer good will bulb and housing replacement. If they give you any BS tell them you will start a cl action law suit and they will have to replace everyones bulb embly if that's what it takes to get them to repair there screw up! They jump.