so I ran some cable from my bedroom to my basement cat5 cable and used those quick connect ports to make s-video outlets on my wall, so now my computer upstairs dishes out s-video signal to my tv downstairs, the only thing is when it goes over this 50 foot run of wire, the picture that comes on the tv has little crosshatching lines over everything? like a big grid on my tv? when i plug the pc direct into the compute without going over that long run of wire the picture is fine? Is this degradation due to loss of signal over long run of wire? Should I get a s-video amplifier to remedy this? or is it due to something else? perhaps cat5 cable crossing a powerline or speaker wire line in the wall?