Dear all, i have Projector IN2104 in my meeting room, after 1 year instalation, our projector doesnt work properly, when we connect to the source it doesnt display from Laptop or Desktop, we put projector in the cealing, and we make cabeling its about 15 meter from the projector. we have try to fix and try many things to solve this problem, we try to make direct conenection to projector, but it have same problem. But When we try to use Video Test Generator form extron , projector display the source. Can You Give some advice for my problem.