is it just there when theres no signal? if so who cares, if it shows up during black scenes or better yet, open up paint on your pc and paint a black image, save it and open it full screen slideshow style. only way you'll be able to check it out. glad to hear you can see any ghosting so far, i know alot of people including my self were very pissed off when projector central dropped that bomb. good scenes that would show ghosting are black backgrounds with only white letters.
oh ya.. if it does show up, what i was told by epson to do was put my hand over the exhaust and put a vacuum cleaner up to the spot where the air filter goes.. at least that was with my 8350.. i dont think it was an epson recommended procedure, but thats what the guy in customer service told me lol