Hello I´m planning to buy a DLP front projector for DVDs, X-Box and PS2 but I am new in projectors and I have a couple questions for someone wise. 1. Can I have burn-ins if I play video games on DLP projector. How about LCD projectors? I have only found informations about burn-ins in RPTV and I don´t know if it´s same with front projectors. 2. I am sitting about 12 ft. from the screen. How large can the screen be so it´s comfortable to watch. I don´t want to look constantly from right to left to see what is going on on the screen. 3. Does the room have to be totally dark to enjoy the picture. The projector is 600 lumens. Thank you.