OK so let me start out by saying that my system is an XEGS with a UAV board installed. Initially I was sending the S-Video output through an up-converter and viewing on a HDMI LCD wide-screen monitor. But when I started seeing some aberrations I switched over to a DELL monitor with S-Video input to rule out the up-converter as being the cause. What I began to notice was that games without a border were doing some strange things towards the left and right sides of the screen (reference screen shot below). So if you look at the point I have marked as  and on the other side  you'll see that the graphic of the canoes ends before actually getting over to the actual edge of the screen. And if you look at the place I marked as  you'll see a vertical offset occurring. Now keep in mind that I have the DELL set to display in 4:3 mode and no zoom, so you would think that all would be good.
So my question is, am I seeing these things because even in 4:3 mode the entire screen output is visible, whereas on an older CRT the picture extends off the screen? And yes I verified on a CRT monitor that this 'extra' area off to the left and right side does not exist.
Screen Shot of Dell 20" Square 4:3 LCD Computer Monitor
With XEGS/UAV S-Video Direct Connection - No External Up-Conversion
BTW, I also see the same result when hooked up through the Dell's composite video input, although overall picture quality is not as good.
Edited by mytekcontrols, Wed Aug 31, 2016 4:00 PM.