My company lets me use the IN1100 for presentations. I really dont do a lot of presentations so I want to set this up on my back patio so I can watch movies at night. I have purchased a 150 inch screen and I have looked at the calculator on the Infocus website, my question is, will I have any problems shooting the signal 21 feet with this quality projector? I will receive the screen in 2 weeks. Thanks in advance Sloanhaus