I have always used a white background. about a month ago, I was having an eye strain problem, so I switched to black. I changed back to white again, and now I have a light line above and below any line, or wall that I draw. It also displays on my cursor cross hairs. It doesn't print or interfere with anything (you can't snap to them). Something must have changed. Anyone have any ideas? It is a bit distracting. Thanks, Bob
I would check the video driver, and update it if it is older. And check the resolution setting - you need to use the highest (native) setting for your monitor, to get the display quality as good as possible. If things are then too small, there are ways to increase the size of things, but keep the quality.