Summary: If you buy this series of projector from Optoma (or any Optoma projector for that matter based on my internet search of similar projector problems), you must be aware of the problems listed in the reviews posted here. I am currently experiencing similar problems that have already been described in prior reviews. My barely 3 year old projector has a great picture and looks great on my 100" screen when it works, however it is currently not working.
Summary: I bought this projector and scaler back in March 2007. I had it just over 3 months when it developed a problem. It was coming up with a lamp error although it was still putting out light. Even though Optoma originally told me that it was a lamp problem, it was not. I had to send it in to Malpitas, CA to have it fixed. I had to pay for shipping (because it was days older than it's poor 3 month full warranty) and insurance.