Hi, Still somewhat of a projector newbie, I got an Epson EMP-TW10 about 18 months ago and i love it. However about 6-8 months ago, it developed a feint blooming that is visible on very light scenes, and most visible on a pure white screen. The blooming has a slight purple / green tinge to it. I've tried cleaning the lens with a glasses lens cloth, and also the bulb but it's not made a difference. I'm not sure how often they recommend the filter is cleaned but I do every so often, 6 months or so but it's never too badly clogged (it is ceiling mounted). Do I need to send my precious off for cleaning? Can get pics if it would help but I'm not sure how well they would show the problem!