I buy this item on Jan 25 2011 and start use in February . after 10 month , it start to appear strange white dot , on the project visual ... it first start with a single white dot , and quickly number of dot increase to a annoying number of 30-40 -lrb- and s still increase -rrb- . as a default reflex I contact Optoma -lrb- in the UK - as I live in London -rrb- . they simply respond they they can not help ... what a waste of money ! PS . it be good projector - when you first set up . but you can not use it with these white dot . and , as I research online , that seem like a common problem - often associate with a very expensive chip flaw ... beware !