I have no picture when running about 25' of HDMI from my AVR to my projector. But when i circumvent the AVR and go direct from my Roku to the projector, using the same cable, it works. I then tested the ports of the AVR by attaching different cable to my flat screen. This also gave me picture. I don't think it's the ports. Any ideas as to what might be the issue? Is it possible that my Roku sends out a stronger signal than my Denon AVR 1912? Projector is Optoma HD161x. Thank you in advance.