I also have a dlp 65" Mitsubishi. I had my bulb changed about 3 yrs ago cause I began getting dots on my screen and the longer I waited the more dots would pop up. I've never had any other problems with that as the tech guy told me I wouldn't. Just the other night though, I noticed my screen started to go dim. Thinking it was just me, until it reached the point to where I can now barely see anything. I don't wanna buy a bulb since I'm seeing a lot of reviews on them melting and take a chance of my home burning down. Nor do I wanna buy another tv. Do you think a cleaning kit would do the trick? Or should I just buy another tv?