I've completely disassembled this projector and it isn't hard. Once you have removed all screws from the bottom of the unit, the two grey ovals on the sides will slide to one side and then pull out. Push on the grey pieces to slide them first, and then pull. Once those are out the two sides of the projector will come apart. Pay careful attention to where the screws go and it will be pretty clear from that point on.
Dan Larson
August 2008