75 Ohm Terminators why?

[vol.2]

Originally Posted by Alex KL-1

This impedance matching issue can harm more with basically-VHF signals from eg. 1600*1000 @ 85Hz or more for analog RGB monitors; this requires a lot of bandwidht, making mismatch readily visible. I have a Dell P991 (Sony chassis) operating at 1600x1200 (at 75Hz), and even a little loss of conduction from VGA connector makes ghosting.

I have a similar era Dell/Sony at 1600x1200. It works well, but it does smear and ghost at lower white levels than do most of my other PC monitors. It's certainly less prone to doing so at lower resolutions. It's got optional BNC connectors on the back, so I have considered looking for a cable I can use for that input to see if it works any better. Unfortunately, I only have a DVI-I output on my video card for an analog signal, so I would have to find a BNC to DVI cable. Really not sure if it's worth spending the money on it and if it would make any difference in the headroom at all.

Maybe it's an impedence issue and the cable itself won't help?