I have a question about the projector and wondering if anyone has any ideas what I should do. I just built a frame for my 12'x9' screen (GC2 & FSX software). Im ready to purchase a projector. Do I have to buy a native 4:3 aspect ratio projector? I'm also planning to use this as a home theater and would like to watch movies in 16:9 HD. Can I buy 16:9HD projector (1920x1080) and switch it to 4:3 aspect ratio when I play golf? Obviously, I would like to fill the entire screen during golf simulation. Thank you in advance.