Like most Z2 owners I've had to live with the irritation & inconvenience of the Z2 dustblob problem. The first dustblob appeared after I'd had the projector about 5 months, and since then their appearence has been getting more & more frequent, to the point where I'm having to clean the pj every ten days or so (I probably only use the pj for between 4-6 hours per week on average). I'm just curious as to whether my experiences are any worse than other owners in this respect? It's sooo inconvenient having to get the pj down off the ceiling mount to clean it so often, expecially as I'm a wheelchair user & consequently have to rely on friends or family to help me out as and when they can