A couple of questions. When you mount the pj from the ceiling, is the top of the lense level with the top of the picture on the screen? Also, what is recommended for a calibration DVD (Avia, sound and vision, etc.)? I was reading another thread, and some said to use the THX settings that come with some DVD's (ex. Star Wars II), untill some new calibration DVD's come out this summer. Is this a good recommendation?