Well, what we have is a long cable run between the display console and the PC. Whoever set up the station initially used some type of powered amplifier or something, what they did was take some cat5 and then expose all the wires and then connect them to these little serial boxes that you plug into the wall, I guess they used these to amp up the signal a bit since the cable is so long. It's hard to say if the problem is with one of the little powered serial boxes or the PC itself, I don't really have any other serial devices to try and I don't have any other powered serial boxes. I don't think Davis would be able to help me either since these powered serial boxes aren't their product.