Im starting to get disappointed now with projectors. It's maybe the particular model I went for but I thought for a piece of hardware costing a grand we would not have to put up with imperfections and flaws such as appearance of dust blobs after a very short time. The TX-100 was my first projector buy. Its a long story, but basically I bought the TX-100 last year and had to get it replaced due to dust blobs all over the place. I got the replacement at the end of January, and now four months later....a dust blob! I took extra care with the replacement used a dust cover. It seems that dust still gets into the innards despite my best efforts to prevent it. Its not even a dusty environment. The most annoying part is that I need to sell the projector by the end of June [I'm moving abroad] - the appearance of a dust blob yesterday has probably reduced the projectors value somewhat. So, what should I do? Should I phone up the retailer and ask for repair then sell it, or should I sell it as is? Its only one dust blob, located bottom right of the screen and about the size of a tennis ball. I know about the possibility of using compressed air - but that could make things worse - blowing compressed air about not only moves the dust from the LCD surface but also moves other dust particles around that might actually end up producing more dust blobs.